diff --git a/.github/actions/embedded-pg-cache/download/action.yml b/.github/actions/embedded-pg-cache/download/action.yml
index c2c3c0c0b2..854e5045c2 100644
--- a/.github/actions/embedded-pg-cache/download/action.yml
+++ b/.github/actions/embedded-pg-cache/download/action.yml
@@ -25,9 +25,11 @@ runs:
         export YEAR_MONTH=$(date +'%Y-%m')
         export PREV_YEAR_MONTH=$(date -d 'last month' +'%Y-%m')
         export DAY=$(date +'%d')
-        echo "year-month=$YEAR_MONTH" >> $GITHUB_OUTPUT
-        echo "prev-year-month=$PREV_YEAR_MONTH" >> $GITHUB_OUTPUT
-        echo "cache-key=${{ inputs.key-prefix }}-${YEAR_MONTH}-${DAY}" >> $GITHUB_OUTPUT
+        echo "year-month=$YEAR_MONTH" >> "$GITHUB_OUTPUT"
+        echo "prev-year-month=$PREV_YEAR_MONTH" >> "$GITHUB_OUTPUT"
+        echo "cache-key=${INPUTS_KEY_PREFIX}-${YEAR_MONTH}-${DAY}" >> "$GITHUB_OUTPUT"
+      env:
+        INPUTS_KEY_PREFIX: ${{ inputs.key-prefix }}
 
     # By default, depot keeps caches for 14 days. This is plenty for embedded
     # postgres, which changes infrequently.
diff --git a/.github/actions/test-cache/download/action.yml b/.github/actions/test-cache/download/action.yml
index 06a87fee06..623bb61e11 100644
--- a/.github/actions/test-cache/download/action.yml
+++ b/.github/actions/test-cache/download/action.yml
@@ -27,9 +27,11 @@ runs:
         export YEAR_MONTH=$(date +'%Y-%m')
         export PREV_YEAR_MONTH=$(date -d 'last month' +'%Y-%m')
         export DAY=$(date +'%d')
-        echo "year-month=$YEAR_MONTH" >> $GITHUB_OUTPUT
-        echo "prev-year-month=$PREV_YEAR_MONTH" >> $GITHUB_OUTPUT
-        echo "cache-key=${{ inputs.key-prefix }}-${YEAR_MONTH}-${DAY}" >> $GITHUB_OUTPUT
+        echo "year-month=$YEAR_MONTH" >> "$GITHUB_OUTPUT"
+        echo "prev-year-month=$PREV_YEAR_MONTH" >> "$GITHUB_OUTPUT"
+        echo "cache-key=${INPUTS_KEY_PREFIX}-${YEAR_MONTH}-${DAY}" >> "$GITHUB_OUTPUT"
+      env:
+        INPUTS_KEY_PREFIX: ${{ inputs.key-prefix }}
 
     # TODO: As a cost optimization, we could remove caches that are older than
     # a day or two. By default, depot keeps caches for 14 days, which isn't
diff --git a/.github/actions/upload-datadog/action.yaml b/.github/actions/upload-datadog/action.yaml
index a2df93ab14..274ff3df64 100644
--- a/.github/actions/upload-datadog/action.yaml
+++ b/.github/actions/upload-datadog/action.yaml
@@ -12,13 +12,12 @@ runs:
       run: |
         set -e
 
-        owner=${{ github.repository_owner	 }}
-        echo "owner: $owner"
-        if [[  $owner != "coder" ]]; then
+        echo "owner: $REPO_OWNER"
+        if [[ "$REPO_OWNER" != "coder" ]]; then
           echo "Not a pull request from the main repo, skipping..."
           exit 0
         fi
-        if [[ -z "${{ inputs.api-key }}" ]]; then
+        if [[ -z "${DATADOG_API_KEY}" ]]; then
           # This can happen for dependabot.
           echo "No API key provided, skipping..."
           exit 0
@@ -31,37 +30,38 @@ runs:
 
         TMP_DIR=$(mktemp -d)
 
-        if [[ "${{ runner.os }}" == "Windows" ]]; then
+        if [[ "${RUNNER_OS}" == "Windows" ]]; then
           BINARY_PATH="${TMP_DIR}/datadog-ci.exe"
           BINARY_URL="https://github.com/DataDog/datadog-ci/releases/download/${BINARY_VERSION}/datadog-ci_win-x64"
-        elif [[ "${{ runner.os }}" == "macOS" ]]; then
+        elif [[ "${RUNNER_OS}" == "macOS" ]]; then
           BINARY_PATH="${TMP_DIR}/datadog-ci"
           BINARY_URL="https://github.com/DataDog/datadog-ci/releases/download/${BINARY_VERSION}/datadog-ci_darwin-arm64"
-        elif [[ "${{ runner.os }}" == "Linux" ]]; then
+        elif [[ "${RUNNER_OS}" == "Linux" ]]; then
           BINARY_PATH="${TMP_DIR}/datadog-ci"
           BINARY_URL="https://github.com/DataDog/datadog-ci/releases/download/${BINARY_VERSION}/datadog-ci_linux-x64"
         else
-          echo "Unsupported OS: ${{ runner.os }}"
+          echo "Unsupported OS: $RUNNER_OS"
           exit 1
         fi
 
-        echo "Downloading DataDog CI binary version ${BINARY_VERSION} for ${{ runner.os }}..."
+        echo "Downloading DataDog CI binary version ${BINARY_VERSION} for $RUNNER_OS..."
         curl -sSL "$BINARY_URL" -o "$BINARY_PATH"
 
-        if [[ "${{ runner.os }}" == "Windows" ]]; then
+        if [[ "${RUNNER_OS}" == "Windows" ]]; then
           echo "$BINARY_HASH_WINDOWS  $BINARY_PATH" | sha256sum --check
-        elif [[ "${{ runner.os }}" == "macOS" ]]; then
+        elif [[ "${RUNNER_OS}" == "macOS" ]]; then
           echo "$BINARY_HASH_MACOS  $BINARY_PATH" | shasum -a 256 --check
-        elif [[ "${{ runner.os }}" == "Linux" ]]; then
+        elif [[ "${RUNNER_OS}" == "Linux" ]]; then
           echo "$BINARY_HASH_LINUX  $BINARY_PATH" | sha256sum --check
         fi
 
         # Make binary executable (not needed for Windows)
-        if [[ "${{ runner.os }}" != "Windows" ]]; then
+        if [[ "${RUNNER_OS}" != "Windows" ]]; then
           chmod +x "$BINARY_PATH"
         fi
 
         "$BINARY_PATH" junit upload --service coder ./gotests.xml \
-          --tags os:${{runner.os}} --tags runner_name:${{runner.name}}
+          --tags "os:${RUNNER_OS}" --tags "runner_name:${RUNNER_NAME}"
       env:
+        REPO_OWNER: ${{ github.repository_owner }}
         DATADOG_API_KEY: ${{ inputs.api-key }}
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 1d9f1ac0ef..76becb50ad 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -42,7 +42,7 @@ jobs:
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
         with:
           fetch-depth: 1
-      # For pull requests it's not necessary to checkout the code
+          persist-credentials: false
       - name: check changed files
         uses: dorny/paths-filter@de90cc6fb38fc0963ad72b210f1f284cd68cea36 # v3.0.2
         id: filter
@@ -111,7 +111,9 @@ jobs:
 
       - id: debug
         run: |
-          echo "${{ toJSON(steps.filter )}}"
+          echo "$FILTER_JSON"
+        env:
+          FILTER_JSON: ${{ toJSON(steps.filter.outputs) }}
 
   # Disabled due to instability. See: https://github.com/coder/coder/issues/14553
   # Re-enable once the flake hash calculation is stable.
@@ -162,6 +164,7 @@ jobs:
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
         with:
           fetch-depth: 1
+          persist-credentials: false
 
       - name: Setup Node
         uses: ./.github/actions/setup-node
@@ -171,10 +174,10 @@ jobs:
 
       - name: Get golangci-lint cache dir
         run: |
-          linter_ver=$(egrep -o 'GOLANGCI_LINT_VERSION=\S+' dogfood/coder/Dockerfile | cut -d '=' -f 2)
-          go install github.com/golangci/golangci-lint/cmd/golangci-lint@v$linter_ver
+          linter_ver=$(grep -Eo 'GOLANGCI_LINT_VERSION=\S+' dogfood/coder/Dockerfile | cut -d '=' -f 2)
+          go install "github.com/golangci/golangci-lint/cmd/golangci-lint@v$linter_ver"
           dir=$(golangci-lint cache status | awk '/Dir/ { print $2 }')
-          echo "LINT_CACHE_DIR=$dir" >> $GITHUB_ENV
+          echo "LINT_CACHE_DIR=$dir" >> "$GITHUB_ENV"
 
       - name: golangci-lint cache
         uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
@@ -206,7 +209,12 @@ jobs:
 
       - name: make lint
         run: |
-          make --output-sync=line -j lint
+          # zizmor isn't included in the lint target because it takes a while,
+          # but we explicitly want to run it in CI.
+          make --output-sync=line -j lint lint/actions/zizmor
+        env:
+          # Used by zizmor to lint third-party GitHub actions.
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Check workflow files
         run: |
@@ -234,6 +242,7 @@ jobs:
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
         with:
           fetch-depth: 1
+          persist-credentials: false
 
       - name: Setup Node
         uses: ./.github/actions/setup-node
@@ -289,6 +298,7 @@ jobs:
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
         with:
           fetch-depth: 1
+          persist-credentials: false
 
       - name: Setup Node
         uses: ./.github/actions/setup-node
@@ -305,8 +315,8 @@ jobs:
 
       - name: make fmt
         run: |
-          export PATH=${PATH}:$(go env GOPATH)/bin
-          make --output-sync -j -B fmt
+          PATH="${PATH}:$(go env GOPATH)/bin" \
+            make --output-sync -j -B fmt
 
       - name: Check for unstaged files
         run: ./scripts/check_unstaged.sh
@@ -340,8 +350,8 @@ jobs:
       - name: Disable Spotlight Indexing
         if: runner.os == 'macOS'
         run: |
-          enabled=$(sudo mdutil -a -s | grep "Indexing enabled" | wc -l)
-          if [ $enabled -eq 0 ]; then
+          enabled=$(sudo mdutil -a -s | { grep -Fc "Indexing enabled" || true; })
+          if [ "$enabled" -eq 0 ]; then
             echo "Spotlight indexing is already disabled"
             exit 0
           fi
@@ -353,12 +363,13 @@ jobs:
       # a separate repository to allow its use before actions/checkout.
       - name: Setup RAM Disks
         if: runner.os == 'Windows'
-        uses: coder/setup-ramdisk-action@e1100847ab2d7bcd9d14bcda8f2d1b0f07b36f1b
+        uses: coder/setup-ramdisk-action@e1100847ab2d7bcd9d14bcda8f2d1b0f07b36f1b # v0.1.0
 
       - name: Checkout
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
         with:
           fetch-depth: 1
+          persist-credentials: false
 
       - name: Setup Go Paths
         id: go-paths
@@ -421,34 +432,34 @@ jobs:
           set -o errexit
           set -o pipefail
 
-          if [ "${{ runner.os }}" == "Windows" ]; then
+          if [ "$RUNNER_OS" == "Windows" ]; then
             # Create a temp dir on the R: ramdisk drive for Windows. The default
             # C: drive is extremely slow: https://github.com/actions/runner-images/issues/8755
             mkdir -p "R:/temp/embedded-pg"
             go run scripts/embedded-pg/main.go -path "R:/temp/embedded-pg" -cache "${EMBEDDED_PG_CACHE_DIR}"
-          elif [ "${{ runner.os }}" == "macOS" ]; then
+          elif [ "$RUNNER_OS" == "macOS" ]; then
             # Postgres runs faster on a ramdisk on macOS too
             mkdir -p /tmp/tmpfs
             sudo mount_tmpfs -o noowners -s 8g /tmp/tmpfs
             go run scripts/embedded-pg/main.go -path /tmp/tmpfs/embedded-pg -cache "${EMBEDDED_PG_CACHE_DIR}"
-          elif [ "${{ runner.os }}" == "Linux" ]; then
+          elif [ "$RUNNER_OS" == "Linux" ]; then
             make test-postgres-docker
           fi
 
           # if macOS, install google-chrome for scaletests
           # As another concern, should we really have this kind of external dependency
           # requirement on standard CI?
-          if [ "${{ matrix.os }}" == "macos-latest" ]; then
+          if [ "${RUNNER_OS}" == "macOS" ]; then
             brew install google-chrome
           fi
 
           # macOS will output "The default interactive shell is now zsh"
           # intermittently in CI...
-          if [ "${{ matrix.os }}" == "macos-latest" ]; then
+          if [ "${RUNNER_OS}" == "macOS" ]; then
             touch ~/.bash_profile && echo "export BASH_SILENCE_DEPRECATION_WARNING=1" >> ~/.bash_profile
           fi
 
-          if [ "${{ runner.os }}" == "Windows" ]; then
+          if [ "${RUNNER_OS}" == "Windows" ]; then
             # Our Windows runners have 16 cores.
             # On Windows Postgres chokes up when we have 16x16=256 tests
             # running in parallel, and dbtestutil.NewDB starts to take more than
@@ -458,7 +469,7 @@ jobs:
             NUM_PARALLEL_TESTS=16
             # Only the CLI and Agent are officially supported on Windows and the rest are too flaky
             PACKAGES="./cli/... ./enterprise/cli/... ./agent/..."
-          elif [ "${{ runner.os }}" == "macOS" ]; then
+          elif [ "${RUNNER_OS}" == "macOS" ]; then
             # Our macOS runners have 8 cores. We set NUM_PARALLEL_TESTS to 16
             # because the tests complete faster and Postgres doesn't choke. It seems
             # that macOS's tmpfs is faster than the one on Windows.
@@ -466,7 +477,7 @@ jobs:
             NUM_PARALLEL_TESTS=16
             # Only the CLI and Agent are officially supported on macOS and the rest are too flaky
             PACKAGES="./cli/... ./enterprise/cli/... ./agent/..."
-          elif [ "${{ runner.os }}" == "Linux" ]; then
+          elif [ "${RUNNER_OS}" == "Linux" ]; then
             # Our Linux runners have 8 cores.
             NUM_PARALLEL_PACKAGES=8
             NUM_PARALLEL_TESTS=8
@@ -475,7 +486,7 @@ jobs:
 
           # by default, run tests with cache
           TESTCOUNT=""
-          if [ "${{ github.ref }}" == "refs/heads/main" ]; then
+          if [ "${GITHUB_REF}" == "refs/heads/main" ]; then
             # on main, run tests without cache
             TESTCOUNT="-count=1"
           fi
@@ -485,7 +496,7 @@ jobs:
           # terraform gets installed in a random directory, so we need to normalize
           # the path to the terraform binary or a bunch of cached tests will be
           # invalidated. See scripts/normalize_path.sh for more details.
-          normalize_path_with_symlinks "$RUNNER_TEMP/sym" "$(dirname $(which terraform))"
+          normalize_path_with_symlinks "$RUNNER_TEMP/sym" "$(dirname "$(which terraform)")"
 
           gotestsum --format standard-quiet --packages "$PACKAGES" \
             -- -timeout=20m -v -p $NUM_PARALLEL_PACKAGES -parallel=$NUM_PARALLEL_TESTS $TESTCOUNT
@@ -546,6 +557,7 @@ jobs:
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
         with:
           fetch-depth: 1
+          persist-credentials: false
 
       - name: Setup Go
         uses: ./.github/actions/setup-go
@@ -594,6 +606,7 @@ jobs:
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
         with:
           fetch-depth: 1
+          persist-credentials: false
 
       - name: Setup Go
         uses: ./.github/actions/setup-go
@@ -653,6 +666,7 @@ jobs:
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
         with:
           fetch-depth: 1
+          persist-credentials: false
 
       - name: Setup Go
         uses: ./.github/actions/setup-go
@@ -679,11 +693,12 @@ jobs:
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
         with:
           fetch-depth: 1
+          persist-credentials: false
 
       - name: Setup Node
         uses: ./.github/actions/setup-node
 
-      - run: pnpm test:ci --max-workers $(nproc)
+      - run: pnpm test:ci --max-workers "$(nproc)"
         working-directory: site
 
   test-e2e:
@@ -711,6 +726,7 @@ jobs:
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
         with:
           fetch-depth: 1
+          persist-credentials: false
 
       - name: Setup Node
         uses: ./.github/actions/setup-node
@@ -785,6 +801,7 @@ jobs:
           fetch-depth: 0
           # 👇 Tells the checkout which commit hash to reference
           ref: ${{ github.event.pull_request.head.ref }}
+          persist-credentials: false
 
       - name: Setup Node
         uses: ./.github/actions/setup-node
@@ -863,6 +880,7 @@ jobs:
         with:
           # 0 is required here for version.sh to work.
           fetch-depth: 0
+          persist-credentials: false
 
       - name: Setup Node
         uses: ./.github/actions/setup-node
@@ -927,7 +945,7 @@ jobs:
           egress-policy: audit
 
       - name: Ensure required checks
-        run: |
+        run: | # zizmor: ignore[template-injection] We're just reading needs.x.result here, no risk of injection
           echo "Checking required checks"
           echo "- fmt: ${{ needs.fmt.result }}"
           echo "- lint: ${{ needs.lint.result }}"
@@ -961,13 +979,16 @@ jobs:
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
         with:
           fetch-depth: 0
+          persist-credentials: false
 
       - name: Setup build tools
         run: |
           brew install bash gnu-getopt make
-          echo "$(brew --prefix bash)/bin" >> $GITHUB_PATH
-          echo "$(brew --prefix gnu-getopt)/bin" >> $GITHUB_PATH
-          echo "$(brew --prefix make)/libexec/gnubin" >> $GITHUB_PATH
+          {
+            echo "$(brew --prefix bash)/bin"
+            echo "$(brew --prefix gnu-getopt)/bin"
+            echo "$(brew --prefix make)/libexec/gnubin"
+          } >> "$GITHUB_PATH"
 
       - name: Switch XCode Version
         uses: maxim-lobanov/setup-xcode@60606e260d2fc5762a71e64e74b2174e8ea3c8bd # v1.6.0
@@ -1045,6 +1066,7 @@ jobs:
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
         with:
           fetch-depth: 0
+          persist-credentials: false
 
       - name: Setup Node
         uses: ./.github/actions/setup-node
@@ -1099,6 +1121,7 @@ jobs:
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
         with:
           fetch-depth: 0
+          persist-credentials: false
 
       - name: GHCR Login
         uses: docker/login-action@184bdaa0721073962dff0199f1fb9940f07167d1 # v3.5.0
@@ -1196,8 +1219,8 @@ jobs:
           go mod download
 
           version="$(./scripts/version.sh)"
-          tag="main-$(echo "$version" | sed 's/+/-/g')"
-          echo "tag=$tag" >> $GITHUB_OUTPUT
+          tag="main-${version//+/-}"
+          echo "tag=$tag" >> "$GITHUB_OUTPUT"
 
           make gen/mark-fresh
           make -j \
@@ -1233,15 +1256,15 @@ jobs:
 
           # build Docker images for each architecture
           version="$(./scripts/version.sh)"
-          tag="main-$(echo "$version" | sed 's/+/-/g')"
-          echo "tag=$tag" >> $GITHUB_OUTPUT
+          tag="main-${version//+/-}"
+          echo "tag=$tag" >> "$GITHUB_OUTPUT"
 
           # build images for each architecture
           # note: omitting the -j argument to avoid race conditions when pushing
           make build/coder_"$version"_linux_{amd64,arm64,armv7}.tag
 
           # only push if we are on main branch
-          if [ "${{ github.ref }}" == "refs/heads/main" ]; then
+          if [ "${GITHUB_REF}" == "refs/heads/main" ]; then
             # build and push multi-arch manifest, this depends on the other images
             # being pushed so will automatically push them
             # note: omitting the -j argument to avoid race conditions when pushing
@@ -1254,10 +1277,11 @@ jobs:
             # we are adding `latest` tag and keeping `main` for backward
             # compatibality
             for t in "${tags[@]}"; do
+                # shellcheck disable=SC2046
                 ./scripts/build_docker_multiarch.sh \
                     --push \
                     --target "ghcr.io/coder/coder-preview:$t" \
-                    --version $version \
+                    --version "$version" \
                     $(cat build/coder_"$version"_linux_{amd64,arm64,armv7}.tag)
             done
           fi
@@ -1267,12 +1291,13 @@ jobs:
         continue-on-error: true
         env:
           COSIGN_EXPERIMENTAL: 1
+          BUILD_TAG: ${{ steps.build-docker.outputs.tag }}
         run: |
           set -euxo pipefail
 
           # Define image base and tags
           IMAGE_BASE="ghcr.io/coder/coder-preview"
-          TAGS=("${{ steps.build-docker.outputs.tag }}" "main" "latest")
+          TAGS=("${BUILD_TAG}" "main" "latest")
 
           # Generate and attest SBOM for each tag
           for tag in "${TAGS[@]}"; do
@@ -1411,7 +1436,7 @@ jobs:
       # Report attestation failures but don't fail the workflow
       - name: Check attestation status
         if: github.ref == 'refs/heads/main'
-        run: |
+        run: | # zizmor: ignore[template-injection] We're just reading steps.attest_x.outcome here, no risk of injection
           if [[ "${{ steps.attest_main.outcome }}" == "failure" ]]; then
             echo "::warning::GitHub attestation for main tag failed"
           fi
@@ -1471,6 +1496,7 @@ jobs:
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
         with:
           fetch-depth: 0
+          persist-credentials: false
 
       - name: Authenticate to Google Cloud
         uses: google-github-actions/auth@b7593ed2efd1c1617e1b0254da33b86225adb2a5 # v2.1.12
@@ -1535,6 +1561,7 @@ jobs:
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
         with:
           fetch-depth: 0
+          persist-credentials: false
 
       - name: Setup flyctl
         uses: superfly/flyctl-actions/setup-flyctl@fc53c09e1bc3be6f54706524e3b82c4f462f77be # v1.5
@@ -1570,7 +1597,7 @@ jobs:
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
         with:
           fetch-depth: 1
-      # We need golang to run the migration main.go
+          persist-credentials: false
       - name: Setup Go
         uses: ./.github/actions/setup-go
 
@@ -1606,15 +1633,15 @@ jobs:
                 "fields": [
                   {
                     "type": "mrkdwn",
-                    "text": "*Workflow:*\n${{ github.workflow }}"
+                    "text": "*Workflow:*\n'"${GITHUB_WORKFLOW}"'"
                   },
                   {
                     "type": "mrkdwn",
-                    "text": "*Committer:*\n${{ github.actor }}"
+                    "text": "*Committer:*\n'"${GITHUB_ACTOR}"'"
                   },
                   {
                     "type": "mrkdwn",
-                    "text": "*Commit:*\n${{ github.sha }}"
+                    "text": "*Commit:*\n'"${GITHUB_SHA}"'"
                   }
                 ]
               },
@@ -1622,7 +1649,7 @@ jobs:
                 "type": "section",
                 "text": {
                   "type": "mrkdwn",
-                  "text": "*View failure:* <${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}|Click here>"
+                  "text": "*View failure:* <'"${RUN_URL}"'|Click here>"
                 }
               },
               {
@@ -1633,4 +1660,7 @@ jobs:
                 }
               }
             ]
-          }' ${{ secrets.CI_FAILURE_SLACK_WEBHOOK }}
+          }' "${SLACK_WEBHOOK}"
+        env:
+          SLACK_WEBHOOK: ${{ secrets.CI_FAILURE_SLACK_WEBHOOK }}
+          RUN_URL: "${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
diff --git a/.github/workflows/contrib.yaml b/.github/workflows/contrib.yaml
index 27dffe94f4..e9c5c9ec2a 100644
--- a/.github/workflows/contrib.yaml
+++ b/.github/workflows/contrib.yaml
@@ -3,6 +3,7 @@ name: contrib
 on:
   issue_comment:
     types: [created, edited]
+  # zizmor: ignore[dangerous-triggers] We explicitly want to run on pull_request_target.
   pull_request_target:
     types:
       - opened
diff --git a/.github/workflows/dependabot.yaml b/.github/workflows/dependabot.yaml
index f86601096a..f95ae3fa81 100644
--- a/.github/workflows/dependabot.yaml
+++ b/.github/workflows/dependabot.yaml
@@ -15,7 +15,7 @@ jobs:
       github.event_name == 'pull_request' &&
       github.event.action == 'opened' &&
       github.event.pull_request.user.login == 'dependabot[bot]' &&
-      github.actor_id == 49699333 &&
+      github.event.pull_request.user.id == 49699333 &&
       github.repository == 'coder/coder'
     permissions:
       pull-requests: write
@@ -44,10 +44,6 @@ jobs:
           GH_TOKEN: ${{secrets.GITHUB_TOKEN}}
 
       - name: Send Slack notification
-        env:
-          PR_URL: ${{github.event.pull_request.html_url}}
-          PR_TITLE: ${{github.event.pull_request.title}}
-          PR_NUMBER: ${{github.event.pull_request.number}}
         run: |
           curl -X POST -H 'Content-type: application/json' \
           --data '{
@@ -58,7 +54,7 @@ jobs:
                 "type": "header",
                 "text": {
                   "type": "plain_text",
-                  "text": ":pr-merged: Auto merge enabled for Dependabot PR #${{ env.PR_NUMBER }}",
+                  "text": ":pr-merged: Auto merge enabled for Dependabot PR #'"${PR_NUMBER}"'",
                   "emoji": true
                 }
               },
@@ -67,7 +63,7 @@ jobs:
                 "fields": [
                   {
                     "type": "mrkdwn",
-                    "text": "${{ env.PR_TITLE }}"
+                    "text": "'"${PR_TITLE}"'"
                   }
                 ]
               },
@@ -80,9 +76,14 @@ jobs:
                       "type": "plain_text",
                       "text": "View PR"
                     },
-                    "url": "${{ env.PR_URL }}"
+                    "url": "'"${PR_URL}"'"
                   }
                 ]
               }
             ]
-          }' ${{ secrets.DEPENDABOT_PRS_SLACK_WEBHOOK }}
+          }' "${{ secrets.DEPENDABOT_PRS_SLACK_WEBHOOK }}"
+        env:
+          SLACK_WEBHOOK: ${{ secrets.DEPENDABOT_PRS_SLACK_WEBHOOK }}
+          PR_NUMBER: ${{ github.event.pull_request.number }}
+          PR_TITLE: ${{ github.event.pull_request.title }}
+          PR_URL: ${{ github.event.pull_request.html_url }}
diff --git a/.github/workflows/docker-base.yaml b/.github/workflows/docker-base.yaml
index dd36ab5a45..5c8fa14245 100644
--- a/.github/workflows/docker-base.yaml
+++ b/.github/workflows/docker-base.yaml
@@ -44,6 +44,8 @@ jobs:
 
       - name: Checkout
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+        with:
+          persist-credentials: false
 
       - name: Docker login
         uses: docker/login-action@184bdaa0721073962dff0199f1fb9940f07167d1 # v3.5.0
diff --git a/.github/workflows/docs-ci.yaml b/.github/workflows/docs-ci.yaml
index cba5bcbcd2..887db40660 100644
--- a/.github/workflows/docs-ci.yaml
+++ b/.github/workflows/docs-ci.yaml
@@ -24,6 +24,8 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+        with:
+          persist-credentials: false
 
       - name: Setup Node
         uses: ./.github/actions/setup-node
@@ -39,10 +41,16 @@ jobs:
       - name: lint
         if: steps.changed-files.outputs.any_changed == 'true'
         run: |
-          pnpm exec markdownlint-cli2 ${{ steps.changed-files.outputs.all_changed_files }}
+          # shellcheck disable=SC2086
+          pnpm exec markdownlint-cli2 $ALL_CHANGED_FILES
+        env:
+          ALL_CHANGED_FILES: ${{ steps.changed-files.outputs.all_changed_files }}
 
       - name: fmt
         if: steps.changed-files.outputs.any_changed == 'true'
         run: |
           # markdown-table-formatter requires a space separated list of files
-          echo ${{ steps.changed-files.outputs.all_changed_files }} | tr ',' '\n' | pnpm exec markdown-table-formatter --check
+          # shellcheck disable=SC2086
+          echo $ALL_CHANGED_FILES | tr ',' '\n' | pnpm exec markdown-table-formatter --check
+        env:
+          ALL_CHANGED_FILES: ${{ steps.changed-files.outputs.all_changed_files }}
diff --git a/.github/workflows/dogfood.yaml b/.github/workflows/dogfood.yaml
index 6735f7d2ce..119cd4fe85 100644
--- a/.github/workflows/dogfood.yaml
+++ b/.github/workflows/dogfood.yaml
@@ -18,8 +18,7 @@ on:
   workflow_dispatch:
 
 permissions:
-  # Necessary for GCP authentication (https://github.com/google-github-actions/setup-gcloud#usage)
-  id-token: write
+  contents: read
 
 jobs:
   build_image:
@@ -33,6 +32,8 @@ jobs:
 
       - name: Checkout
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+        with:
+          persist-credentials: false
 
       - name: Setup Nix
         uses: nixbuild/nix-quick-install-action@63ca48f939ee3b8d835f4126562537df0fee5b91 # v32
@@ -67,10 +68,11 @@ jobs:
       - name: "Branch name to Docker tag name"
         id: docker-tag-name
         run: |
-          tag=${{ steps.branch-name.outputs.current_branch }}
           # Replace / with --, e.g. user/feature => user--feature.
-          tag=${tag//\//--}
-          echo "tag=${tag}" >> $GITHUB_OUTPUT
+          tag=${BRANCH_NAME//\//--}
+          echo "tag=${tag}" >> "$GITHUB_OUTPUT"
+        env:
+          BRANCH_NAME: ${{ steps.branch-name.outputs.current_branch }}
 
       - name: Set up Depot CLI
         uses: depot/setup-action@b0b1ea4f69e92ebf5dea3f8713a1b0c37b2126a5 # v1.6.0
@@ -107,15 +109,20 @@ jobs:
 
           CURRENT_SYSTEM=$(nix eval --impure --raw --expr 'builtins.currentSystem')
 
-          docker image tag codercom/oss-dogfood-nix:latest-$CURRENT_SYSTEM codercom/oss-dogfood-nix:${{ steps.docker-tag-name.outputs.tag }}
-          docker image push codercom/oss-dogfood-nix:${{ steps.docker-tag-name.outputs.tag }}
+          docker image tag "codercom/oss-dogfood-nix:latest-$CURRENT_SYSTEM" "codercom/oss-dogfood-nix:${DOCKER_TAG}"
+          docker image push "codercom/oss-dogfood-nix:${DOCKER_TAG}"
 
-          docker image tag codercom/oss-dogfood-nix:latest-$CURRENT_SYSTEM codercom/oss-dogfood-nix:latest
-          docker image push codercom/oss-dogfood-nix:latest
+          docker image tag "codercom/oss-dogfood-nix:latest-$CURRENT_SYSTEM" "codercom/oss-dogfood-nix:latest"
+          docker image push "codercom/oss-dogfood-nix:latest"
+        env:
+          DOCKER_TAG: ${{ steps.docker-tag-name.outputs.tag }}
 
   deploy_template:
     needs: build_image
     runs-on: ubuntu-latest
+    permissions:
+      # Necessary for GCP authentication (https://github.com/google-github-actions/setup-gcloud#usage)
+      id-token: write
     steps:
       - name: Harden Runner
         uses: step-security/harden-runner@ec9f2d5744a09debf3a187a3f4f675c53b671911 # v2.13.0
@@ -124,6 +131,8 @@ jobs:
 
       - name: Checkout
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+        with:
+          persist-credentials: false
 
       - name: Setup Terraform
         uses: ./.github/actions/setup-tf
@@ -152,12 +161,12 @@ jobs:
       - name: Get short commit SHA
         if: github.ref == 'refs/heads/main'
         id: vars
-        run: echo "sha_short=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
+        run: echo "sha_short=$(git rev-parse --short HEAD)" >> "$GITHUB_OUTPUT"
 
       - name: Get latest commit title
         if: github.ref == 'refs/heads/main'
         id: message
-        run: echo "pr_title=$(git log --format=%s -n 1 ${{ github.sha }})" >> $GITHUB_OUTPUT
+        run: echo "pr_title=$(git log --format=%s -n 1 ${{ github.sha }})" >> "$GITHUB_OUTPUT"
 
       - name: "Push template"
         if: github.ref == 'refs/heads/main'
diff --git a/.github/workflows/nightly-gauntlet.yaml b/.github/workflows/nightly-gauntlet.yaml
index 7bbf690f5e..5769b3b652 100644
--- a/.github/workflows/nightly-gauntlet.yaml
+++ b/.github/workflows/nightly-gauntlet.yaml
@@ -37,8 +37,8 @@ jobs:
       - name: Disable Spotlight Indexing
         if: runner.os == 'macOS'
         run: |
-          enabled=$(sudo mdutil -a -s | grep "Indexing enabled" | wc -l)
-          if [ $enabled -eq 0 ]; then
+          enabled=$(sudo mdutil -a -s | { grep -Fc "Indexing enabled" || true; })
+          if [ "$enabled" -eq 0 ]; then
             echo "Spotlight indexing is already disabled"
             exit 0
           fi
@@ -50,12 +50,13 @@ jobs:
       # a separate repository to allow its use before actions/checkout.
       - name: Setup RAM Disks
         if: runner.os == 'Windows'
-        uses: coder/setup-ramdisk-action@e1100847ab2d7bcd9d14bcda8f2d1b0f07b36f1b
+        uses: coder/setup-ramdisk-action@e1100847ab2d7bcd9d14bcda8f2d1b0f07b36f1b # v0.1.0
 
       - name: Checkout
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
         with:
           fetch-depth: 1
+          persist-credentials: false
 
       - name: Setup Go
         uses: ./.github/actions/setup-go
@@ -185,15 +186,15 @@ jobs:
                 "fields": [
                   {
                     "type": "mrkdwn",
-                    "text": "*Workflow:*\n${{ github.workflow }}"
+                    "text": "*Workflow:*\n'"${GITHUB_WORKFLOW}"'"
                   },
                   {
                     "type": "mrkdwn",
-                    "text": "*Committer:*\n${{ github.actor }}"
+                    "text": "*Committer:*\n'"${GITHUB_ACTOR}"'"
                   },
                   {
                     "type": "mrkdwn",
-                    "text": "*Commit:*\n${{ github.sha }}"
+                    "text": "*Commit:*\n'"${GITHUB_SHA}"'"
                   }
                 ]
               },
@@ -201,7 +202,7 @@ jobs:
                 "type": "section",
                 "text": {
                   "type": "mrkdwn",
-                  "text": "*View failure:* <${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}|Click here>"
+                  "text": "*View failure:* <'"${RUN_URL}"'|Click here>"
                 }
               },
               {
@@ -212,4 +213,7 @@ jobs:
                 }
               }
             ]
-          }' ${{ secrets.CI_FAILURE_SLACK_WEBHOOK }}
+          }' "${SLACK_WEBHOOK}"
+        env:
+          SLACK_WEBHOOK: ${{ secrets.CI_FAILURE_SLACK_WEBHOOK }}
+          RUN_URL: "${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
diff --git a/.github/workflows/pr-auto-assign.yaml b/.github/workflows/pr-auto-assign.yaml
index 746b471f57..7e2f6441de 100644
--- a/.github/workflows/pr-auto-assign.yaml
+++ b/.github/workflows/pr-auto-assign.yaml
@@ -3,6 +3,7 @@
 name: PR Auto Assign
 
 on:
+  # zizmor: ignore[dangerous-triggers] We explicitly want to run on pull_request_target.
   pull_request_target:
     types: [opened]
 
diff --git a/.github/workflows/pr-cleanup.yaml b/.github/workflows/pr-cleanup.yaml
index 4c3023990e..32e260b112 100644
--- a/.github/workflows/pr-cleanup.yaml
+++ b/.github/workflows/pr-cleanup.yaml
@@ -27,10 +27,12 @@ jobs:
         id: pr_number
         run: |
           if [ -n "${{ github.event.pull_request.number }}" ]; then
-            echo "PR_NUMBER=${{ github.event.pull_request.number }}" >> $GITHUB_OUTPUT
+            echo "PR_NUMBER=${{ github.event.pull_request.number }}" >> "$GITHUB_OUTPUT"
           else
-            echo "PR_NUMBER=${{ github.event.inputs.pr_number }}" >> $GITHUB_OUTPUT
+            echo "PR_NUMBER=${PR_NUMBER}" >> "$GITHUB_OUTPUT"
           fi
+        env:
+          PR_NUMBER: ${{ github.event.inputs.pr_number }}
 
       - name: Delete image
         continue-on-error: true
@@ -51,17 +53,21 @@ jobs:
       - name: Delete helm release
         run: |
           set -euo pipefail
-          helm delete --namespace "pr${{ steps.pr_number.outputs.PR_NUMBER }}" "pr${{ steps.pr_number.outputs.PR_NUMBER }}" || echo "helm release not found"
+          helm delete --namespace "pr${PR_NUMBER}" "pr${PR_NUMBER}" || echo "helm release not found"
+        env:
+          PR_NUMBER: ${{ steps.pr_number.outputs.PR_NUMBER }}
 
       - name: "Remove PR namespace"
         run: |
-          kubectl delete namespace "pr${{ steps.pr_number.outputs.PR_NUMBER }}" || echo "namespace not found"
+          kubectl delete namespace "pr${PR_NUMBER}" || echo "namespace not found"
+        env:
+          PR_NUMBER: ${{ steps.pr_number.outputs.PR_NUMBER }}
 
       - name: "Remove DNS records"
         run: |
           set -euo pipefail
           # Get identifier for the record
-          record_id=$(curl -X GET "https://api.cloudflare.com/client/v4/zones/${{ secrets.PR_DEPLOYMENTS_ZONE_ID }}/dns_records?name=%2A.pr${{ steps.pr_number.outputs.PR_NUMBER }}.${{ secrets.PR_DEPLOYMENTS_DOMAIN }}" \
+          record_id=$(curl -X GET "https://api.cloudflare.com/client/v4/zones/${{ secrets.PR_DEPLOYMENTS_ZONE_ID }}/dns_records?name=%2A.pr${PR_NUMBER}.${{ secrets.PR_DEPLOYMENTS_DOMAIN }}" \
           -H "Authorization: Bearer ${{ secrets.PR_DEPLOYMENTS_CLOUDFLARE_API_TOKEN }}" \
           -H "Content-Type:application/json" | jq -r '.result[0].id') || echo "DNS record not found"
 
@@ -73,9 +79,13 @@ jobs:
             -H "Authorization: Bearer ${{ secrets.PR_DEPLOYMENTS_CLOUDFLARE_API_TOKEN }}" \
             -H "Content-Type:application/json" | jq -r '.success'
           ) || echo "DNS record not found"
+        env:
+          PR_NUMBER: ${{ steps.pr_number.outputs.PR_NUMBER }}
 
       - name: "Delete certificate"
         if: ${{ github.event.pull_request.merged == true }}
         run: |
           set -euxo pipefail
-          kubectl delete certificate "pr${{ steps.pr_number.outputs.PR_NUMBER }}-tls" -n pr-deployment-certs || echo "certificate not found"
+          kubectl delete certificate "pr${PR_NUMBER}-tls" -n pr-deployment-certs || echo "certificate not found"
+        env:
+          PR_NUMBER: ${{ steps.pr_number.outputs.PR_NUMBER }}
diff --git a/.github/workflows/pr-deploy.yaml b/.github/workflows/pr-deploy.yaml
index e31cc26e79..ccf7511eaf 100644
--- a/.github/workflows/pr-deploy.yaml
+++ b/.github/workflows/pr-deploy.yaml
@@ -45,6 +45,8 @@ jobs:
 
       - name: Checkout
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+        with:
+          persist-credentials: false
 
       - name: Check if PR is open
         id: check_pr
@@ -55,7 +57,7 @@ jobs:
             echo "PR doesn't exist or is closed."
             pr_open=false
           fi
-          echo "pr_open=$pr_open" >> $GITHUB_OUTPUT
+          echo "pr_open=$pr_open" >> "$GITHUB_OUTPUT"
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
@@ -82,6 +84,7 @@ jobs:
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
         with:
           fetch-depth: 0
+          persist-credentials: false
 
       - name: Get PR number, title, and branch name
         id: pr_info
@@ -90,9 +93,11 @@ jobs:
           PR_NUMBER=$(gh pr view --json number | jq -r '.number')
           PR_TITLE=$(gh pr view --json title | jq -r '.title')
           PR_URL=$(gh pr view --json url | jq -r '.url')
-          echo "PR_URL=$PR_URL" >> $GITHUB_OUTPUT
-          echo "PR_NUMBER=$PR_NUMBER" >> $GITHUB_OUTPUT
-          echo "PR_TITLE=$PR_TITLE" >> $GITHUB_OUTPUT
+          {
+            echo "PR_URL=$PR_URL"
+            echo "PR_NUMBER=$PR_NUMBER"
+            echo "PR_TITLE=$PR_TITLE"
+          } >> "$GITHUB_OUTPUT"
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
@@ -100,8 +105,8 @@ jobs:
         id: set_tags
         run: |
           set -euo pipefail
-          echo "CODER_BASE_IMAGE_TAG=$CODER_BASE_IMAGE_TAG" >> $GITHUB_OUTPUT
-          echo "CODER_IMAGE_TAG=$CODER_IMAGE_TAG" >> $GITHUB_OUTPUT
+          echo "CODER_BASE_IMAGE_TAG=$CODER_BASE_IMAGE_TAG" >> "$GITHUB_OUTPUT"
+          echo "CODER_IMAGE_TAG=$CODER_IMAGE_TAG" >> "$GITHUB_OUTPUT"
         env:
           CODER_BASE_IMAGE_TAG: ghcr.io/coder/coder-preview-base:pr${{ steps.pr_info.outputs.PR_NUMBER }}
           CODER_IMAGE_TAG: ghcr.io/coder/coder-preview:pr${{ steps.pr_info.outputs.PR_NUMBER }}
@@ -118,14 +123,16 @@ jobs:
         id: check_deployment
         run: |
           set -euo pipefail
-          if helm status "pr${{ steps.pr_info.outputs.PR_NUMBER }}" --namespace "pr${{ steps.pr_info.outputs.PR_NUMBER }}" > /dev/null 2>&1; then
+          if helm status "pr${PR_NUMBER}" --namespace "pr${PR_NUMBER}" > /dev/null 2>&1; then
             echo "Deployment already exists. Skipping deployment."
             NEW=false
           else
             echo "Deployment doesn't exist."
             NEW=true
           fi
-          echo "NEW=$NEW" >> $GITHUB_OUTPUT
+          echo "NEW=$NEW" >> "$GITHUB_OUTPUT"
+        env:
+          PR_NUMBER: ${{ steps.pr_info.outputs.PR_NUMBER }}
 
       - name: Check changed files
         uses: dorny/paths-filter@de90cc6fb38fc0963ad72b210f1f284cd68cea36 # v3.0.2
@@ -154,17 +161,20 @@ jobs:
       - name: Print number of changed files
         run: |
           set -euo pipefail
-          echo "Total number of changed files: ${{ steps.filter.outputs.all_count }}"
-          echo "Number of ignored files: ${{ steps.filter.outputs.ignored_count }}"
+          echo "Total number of changed files: ${ALL_COUNT}"
+          echo "Number of ignored files: ${IGNORED_COUNT}"
+        env:
+          ALL_COUNT: ${{ steps.filter.outputs.all_count }}
+          IGNORED_COUNT: ${{ steps.filter.outputs.ignored_count }}
 
       - name: Build conditionals
         id: build_conditionals
         run: |
           set -euo pipefail
           # build if the workflow is manually triggered and the deployment doesn't exist (first build or force rebuild)
-          echo "first_or_force_build=${{ (github.event_name == 'workflow_dispatch' && steps.check_deployment.outputs.NEW == 'true') || github.event.inputs.build == 'true' }}" >> $GITHUB_OUTPUT
+          echo "first_or_force_build=${{ (github.event_name == 'workflow_dispatch' && steps.check_deployment.outputs.NEW == 'true') || github.event.inputs.build == 'true' }}" >> "$GITHUB_OUTPUT"
           # build if the deployment already exist and there are changes in the files that we care about (automatic updates)
-          echo "automatic_rebuild=${{ steps.check_deployment.outputs.NEW == 'false' && steps.filter.outputs.all_count > steps.filter.outputs.ignored_count }}" >> $GITHUB_OUTPUT
+          echo "automatic_rebuild=${{ steps.check_deployment.outputs.NEW == 'false' && steps.filter.outputs.all_count > steps.filter.outputs.ignored_count }}" >> "$GITHUB_OUTPUT"
 
   comment-pr:
     needs: get_info
@@ -226,6 +236,7 @@ jobs:
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
         with:
           fetch-depth: 0
+          persist-credentials: false
 
       - name: Setup Node
         uses: ./.github/actions/setup-node
@@ -250,12 +261,13 @@ jobs:
           make gen/mark-fresh
           export DOCKER_IMAGE_NO_PREREQUISITES=true
           version="$(./scripts/version.sh)"
-          export CODER_IMAGE_BUILD_BASE_TAG="$(CODER_IMAGE_BASE=coder-base ./scripts/image_tag.sh --version "$version")"
+          CODER_IMAGE_BUILD_BASE_TAG="$(CODER_IMAGE_BASE=coder-base ./scripts/image_tag.sh --version "$version")"
+          export CODER_IMAGE_BUILD_BASE_TAG
           make -j build/coder_linux_amd64
           ./scripts/build_docker.sh \
             --arch amd64 \
-            --target ${{ env.CODER_IMAGE_TAG }} \
-            --version $version \
+            --target "${CODER_IMAGE_TAG}" \
+            --version "$version" \
             --push \
             build/coder_linux_amd64
 
@@ -293,13 +305,13 @@ jobs:
           set -euo pipefail
           foundTag=$(
             gh api /orgs/coder/packages/container/coder-preview/versions |
-            jq -r --arg tag "pr${{ env.PR_NUMBER }}" '.[] |
+            jq -r --arg tag "pr${PR_NUMBER}" '.[] |
             select(.metadata.container.tags == [$tag]) |
             .metadata.container.tags[0]'
           )
           if [ -z "$foundTag" ]; then
             echo "Image not found"
-            echo "${{ env.CODER_IMAGE_TAG }} not found in ghcr.io/coder/coder-preview"
+            echo "${CODER_IMAGE_TAG} not found in ghcr.io/coder/coder-preview"
             exit 1
           else
             echo "Image found"
@@ -314,40 +326,42 @@ jobs:
           curl -X POST "https://api.cloudflare.com/client/v4/zones/${{ secrets.PR_DEPLOYMENTS_ZONE_ID }}/dns_records" \
             -H "Authorization: Bearer ${{ secrets.PR_DEPLOYMENTS_CLOUDFLARE_API_TOKEN }}" \
             -H "Content-Type:application/json" \
-            --data '{"type":"CNAME","name":"*.${{ env.PR_HOSTNAME }}","content":"${{ env.PR_HOSTNAME }}","ttl":1,"proxied":false}'
+            --data '{"type":"CNAME","name":"*.'"${PR_HOSTNAME}"'","content":"'"${PR_HOSTNAME}"'","ttl":1,"proxied":false}'
 
       - name: Create PR namespace
         if: needs.get_info.outputs.NEW == 'true' || github.event.inputs.deploy == 'true'
         run: |
           set -euo pipefail
           # try to delete the namespace, but don't fail if it doesn't exist
-          kubectl delete namespace "pr${{ env.PR_NUMBER }}" || true
-          kubectl create namespace "pr${{ env.PR_NUMBER }}"
+          kubectl delete namespace "pr${PR_NUMBER}" || true
+          kubectl create namespace "pr${PR_NUMBER}"
 
       - name: Checkout
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+        with:
+          persist-credentials: false
 
       - name: Check and Create Certificate
         if: needs.get_info.outputs.NEW == 'true' || github.event.inputs.deploy == 'true'
         run: |
           # Using kubectl to check if a Certificate resource already exists
           # we are doing this to avoid letsenrypt rate limits
-          if ! kubectl get certificate pr${{ env.PR_NUMBER }}-tls -n pr-deployment-certs > /dev/null 2>&1; then
+          if ! kubectl get certificate "pr${PR_NUMBER}-tls" -n pr-deployment-certs > /dev/null 2>&1; then
             echo "Certificate doesn't exist. Creating a new one."
             envsubst < ./.github/pr-deployments/certificate.yaml | kubectl apply -f -
           else
             echo "Certificate exists. Skipping certificate creation."
           fi
-          echo "Copy certificate from pr-deployment-certs to pr${{ env.PR_NUMBER }} namespace"
-          until kubectl get secret pr${{ env.PR_NUMBER }}-tls -n pr-deployment-certs &> /dev/null
+          echo "Copy certificate from pr-deployment-certs to pr${PR_NUMBER} namespace"
+          until kubectl get secret "pr${PR_NUMBER}-tls" -n pr-deployment-certs &> /dev/null
           do
-            echo "Waiting for secret pr${{ env.PR_NUMBER }}-tls to be created..."
+            echo "Waiting for secret pr${PR_NUMBER}-tls to be created..."
             sleep 5
           done
           (
-            kubectl get secret pr${{ env.PR_NUMBER }}-tls -n pr-deployment-certs -o json |
+            kubectl get secret "pr${PR_NUMBER}-tls" -n pr-deployment-certs -o json |
             jq 'del(.metadata.namespace,.metadata.creationTimestamp,.metadata.resourceVersion,.metadata.selfLink,.metadata.uid,.metadata.managedFields)' |
-            kubectl -n pr${{ env.PR_NUMBER }} apply -f -
+            kubectl -n "pr${PR_NUMBER}" apply -f -
           )
 
       - name: Set up PostgreSQL database
@@ -355,13 +369,13 @@ jobs:
         run: |
           helm repo add bitnami https://charts.bitnami.com/bitnami
           helm install coder-db bitnami/postgresql \
-            --namespace pr${{ env.PR_NUMBER }} \
+            --namespace "pr${PR_NUMBER}" \
             --set auth.username=coder \
             --set auth.password=coder \
             --set auth.database=coder \
             --set persistence.size=10Gi
-          kubectl create secret generic coder-db-url -n pr${{ env.PR_NUMBER }} \
-            --from-literal=url="postgres://coder:coder@coder-db-postgresql.pr${{ env.PR_NUMBER }}.svc.cluster.local:5432/coder?sslmode=disable"
+          kubectl create secret generic coder-db-url -n "pr${PR_NUMBER}" \
+            --from-literal=url="postgres://coder:coder@coder-db-postgresql.pr${PR_NUMBER}.svc.cluster.local:5432/coder?sslmode=disable"
 
       - name: Create a service account, role, and rolebinding for the PR namespace
         if: needs.get_info.outputs.NEW == 'true' || github.event.inputs.deploy == 'true'
@@ -383,8 +397,8 @@ jobs:
         run: |
           set -euo pipefail
           helm dependency update --skip-refresh ./helm/coder
-          helm upgrade --install "pr${{ env.PR_NUMBER }}" ./helm/coder \
-          --namespace "pr${{ env.PR_NUMBER }}" \
+          helm upgrade --install "pr${PR_NUMBER}" ./helm/coder \
+          --namespace "pr${PR_NUMBER}" \
           --values ./pr-deploy-values.yaml \
           --force
 
@@ -393,8 +407,8 @@ jobs:
         run: |
           helm repo add coder-logstream-kube https://helm.coder.com/logstream-kube
           helm upgrade --install coder-logstream-kube coder-logstream-kube/coder-logstream-kube \
-            --namespace "pr${{ env.PR_NUMBER }}" \
-            --set url="https://${{ env.PR_HOSTNAME }}"
+            --namespace "pr${PR_NUMBER}" \
+            --set url="https://${PR_HOSTNAME}"
 
       - name: Get Coder binary
         if: needs.get_info.outputs.NEW == 'true' || github.event.inputs.deploy == 'true'
@@ -402,16 +416,16 @@ jobs:
           set -euo pipefail
 
           DEST="${HOME}/coder"
-          URL="https://${{ env.PR_HOSTNAME }}/bin/coder-linux-amd64"
+          URL="https://${PR_HOSTNAME}/bin/coder-linux-amd64"
 
-          mkdir -p "$(dirname ${DEST})"
+          mkdir -p "$(dirname "$DEST")"
 
           COUNT=0
-          until $(curl --output /dev/null --silent --head --fail "$URL"); do
+          until curl --output /dev/null --silent --head --fail "$URL"; do
               printf '.'
               sleep 5
               COUNT=$((COUNT+1))
-              if [ $COUNT -ge 60 ]; then
+              if [ "$COUNT" -ge 60 ]; then
                 echo "Timed out waiting for URL to be available"
                 exit 1
               fi
@@ -435,24 +449,24 @@ jobs:
 
           # add mask so that the password is not printed to the logs
           echo "::add-mask::$password"
-          echo "password=$password" >> $GITHUB_OUTPUT
+          echo "password=$password" >> "$GITHUB_OUTPUT"
 
           coder login \
-            --first-user-username pr${{ env.PR_NUMBER }}-admin \
-            --first-user-email pr${{ env.PR_NUMBER }}@coder.com \
-            --first-user-password $password \
+            --first-user-username "pr${PR_NUMBER}-admin" \
+            --first-user-email "pr${PR_NUMBER}@coder.com" \
+            --first-user-password "$password" \
             --first-user-trial=false \
             --use-token-as-session \
-            https://${{ env.PR_HOSTNAME }}
+            "https://${PR_HOSTNAME}"
 
           # Create a user for the github.actor
           # TODO: update once https://github.com/coder/coder/issues/15466 is resolved
           # coder users create \
-          #   --username ${{ github.actor }} \
+          #   --username ${GITHUB_ACTOR} \
           #   --login-type github
 
           # promote the user to admin role
-          # coder org members edit-role ${{ github.actor }} organization-admin
+          # coder org members edit-role ${GITHUB_ACTOR} organization-admin
           # TODO: update once https://github.com/coder/internal/issues/207 is resolved
 
       - name: Send Slack notification
@@ -461,17 +475,19 @@ jobs:
           curl -s -o /dev/null -X POST -H 'Content-type: application/json' \
             -d \
             '{
-              "pr_number": "'"${{ env.PR_NUMBER }}"'",
-              "pr_url": "'"${{ env.PR_URL }}"'",
-              "pr_title": "'"${{ env.PR_TITLE }}"'",
-              "pr_access_url": "'"https://${{ env.PR_HOSTNAME }}"'",
-              "pr_username": "'"pr${{ env.PR_NUMBER }}-admin"'",
-              "pr_email": "'"pr${{ env.PR_NUMBER }}@coder.com"'",
-              "pr_password": "'"${{ steps.setup_deployment.outputs.password }}"'",
-              "pr_actor": "'"${{ github.actor }}"'"
+              "pr_number": "'"${PR_NUMBER}"'",
+              "pr_url": "'"${PR_URL}"'",
+              "pr_title": "'"${PR_TITLE}"'",
+              "pr_access_url": "'"https://${PR_HOSTNAME}"'",
+              "pr_username": "'"pr${PR_NUMBER}-admin"'",
+              "pr_email": "'"pr${PR_NUMBER}@coder.com"'",
+              "pr_password": "'"${PASSWORD}"'",
+              "pr_actor": "'"${GITHUB_ACTOR}"'"
             }' \
             ${{ secrets.PR_DEPLOYMENTS_SLACK_WEBHOOK }}
           echo "Slack notification sent"
+        env:
+          PASSWORD: ${{ steps.setup_deployment.outputs.password }}
 
       - name: Find Comment
         uses: peter-evans/find-comment@3eae4d37986fb5a8592848f6a574fdf654e61f9e # v3.1.0
@@ -504,7 +520,7 @@ jobs:
         run: |
           set -euo pipefail
           cd .github/pr-deployments/template
-          coder templates push -y --variable namespace=pr${{ env.PR_NUMBER }} kubernetes
+          coder templates push -y --variable "namespace=pr${PR_NUMBER}" kubernetes
 
           # Create workspace
           coder create --template="kubernetes" kube --parameter cpu=2 --parameter memory=4 --parameter home_disk_size=2 -y
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 06041e1865..f4f9c8f317 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -68,6 +68,7 @@ jobs:
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
         with:
           fetch-depth: 0
+          persist-credentials: false
 
       # If the event that triggered the build was an annotated tag (which our
       # tags are supposed to be), actions/checkout has a bug where the tag in
@@ -80,9 +81,11 @@ jobs:
       - name: Setup build tools
         run: |
           brew install bash gnu-getopt make
-          echo "$(brew --prefix bash)/bin" >> $GITHUB_PATH
-          echo "$(brew --prefix gnu-getopt)/bin" >> $GITHUB_PATH
-          echo "$(brew --prefix make)/libexec/gnubin" >> $GITHUB_PATH
+          {
+            echo "$(brew --prefix bash)/bin"
+            echo "$(brew --prefix gnu-getopt)/bin"
+            echo "$(brew --prefix make)/libexec/gnubin"
+          } >> "$GITHUB_PATH"
 
       - name: Switch XCode Version
         uses: maxim-lobanov/setup-xcode@60606e260d2fc5762a71e64e74b2174e8ea3c8bd # v1.6.0
@@ -169,6 +172,7 @@ jobs:
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
         with:
           fetch-depth: 0
+          persist-credentials: false
 
       # If the event that triggered the build was an annotated tag (which our
       # tags are supposed to be), actions/checkout has a bug where the tag in
@@ -183,9 +187,9 @@ jobs:
         run: |
           set -euo pipefail
           version="$(./scripts/version.sh)"
-          echo "version=$version" >> $GITHUB_OUTPUT
+          echo "version=$version" >> "$GITHUB_OUTPUT"
           # Speed up future version.sh calls.
-          echo "CODER_FORCE_VERSION=$version" >> $GITHUB_ENV
+          echo "CODER_FORCE_VERSION=$version" >> "$GITHUB_ENV"
           echo "$version"
 
       # Verify that all expectations for a release are met.
@@ -227,7 +231,7 @@ jobs:
 
           release_notes_file="$(mktemp -t release_notes.XXXXXX)"
           echo "$CODER_RELEASE_NOTES" > "$release_notes_file"
-          echo CODER_RELEASE_NOTES_FILE="$release_notes_file" >> $GITHUB_ENV
+          echo CODER_RELEASE_NOTES_FILE="$release_notes_file" >> "$GITHUB_ENV"
 
       - name: Show release notes
         run: |
@@ -377,9 +381,9 @@ jobs:
           set -euo pipefail
           if [[ "${CODER_RELEASE:-}" != *t* ]] || [[ "${CODER_DRY_RUN:-}" == *t* ]]; then
             # Empty value means use the default and avoid building a fresh one.
-            echo "tag=" >> $GITHUB_OUTPUT
+            echo "tag=" >> "$GITHUB_OUTPUT"
           else
-            echo "tag=$(CODER_IMAGE_BASE=ghcr.io/coder/coder-base ./scripts/image_tag.sh)" >> $GITHUB_OUTPUT
+            echo "tag=$(CODER_IMAGE_BASE=ghcr.io/coder/coder-base ./scripts/image_tag.sh)" >> "$GITHUB_OUTPUT"
           fi
 
       - name: Create empty base-build-context directory
@@ -414,7 +418,7 @@ jobs:
           # available immediately
           for i in {1..10}; do
             rc=0
-            raw_manifests=$(docker buildx imagetools inspect --raw "${{ steps.image-base-tag.outputs.tag }}") || rc=$?
+            raw_manifests=$(docker buildx imagetools inspect --raw "${IMAGE_TAG}") || rc=$?
             if [[ "$rc" -eq 0 ]]; then
               break
             fi
@@ -436,6 +440,8 @@ jobs:
           echo "$manifests" | grep -q linux/amd64
           echo "$manifests" | grep -q linux/arm64
           echo "$manifests" | grep -q linux/arm/v7
+        env:
+          IMAGE_TAG: ${{ steps.image-base-tag.outputs.tag }}
 
       # GitHub attestation provides SLSA provenance for Docker images, establishing a verifiable
       # record that these images were built in GitHub Actions with specific inputs and environment.
@@ -503,7 +509,7 @@ jobs:
 
           # Save multiarch image tag for attestation
           multiarch_image="$(./scripts/image_tag.sh)"
-          echo "multiarch_image=${multiarch_image}" >> $GITHUB_OUTPUT
+          echo "multiarch_image=${multiarch_image}" >> "$GITHUB_OUTPUT"
 
           # For debugging, print all docker image tags
           docker images
@@ -511,16 +517,15 @@ jobs:
           # if the current version is equal to the highest (according to semver)
           # version in the repo, also create a multi-arch image as ":latest" and
           # push it
-          created_latest_tag=false
           if [[ "$(git tag | grep '^v' | grep -vE '(rc|dev|-|\+|\/)' | sort -r --version-sort | head -n1)" == "v$(./scripts/version.sh)" ]]; then
+            # shellcheck disable=SC2046
             ./scripts/build_docker_multiarch.sh \
               --push \
               --target "$(./scripts/image_tag.sh --version latest)" \
               $(cat build/coder_"$version"_linux_{amd64,arm64,armv7}.tag)
-            created_latest_tag=true
-            echo "created_latest_tag=true" >> $GITHUB_OUTPUT
+            echo "created_latest_tag=true" >> "$GITHUB_OUTPUT"
           else
-            echo "created_latest_tag=false" >> $GITHUB_OUTPUT
+            echo "created_latest_tag=false" >> "$GITHUB_OUTPUT"
           fi
         env:
           CODER_BASE_IMAGE_TAG: ${{ steps.image-base-tag.outputs.tag }}
@@ -528,24 +533,27 @@ jobs:
       - name: SBOM Generation and Attestation
         if: ${{ !inputs.dry_run }}
         env:
-          COSIGN_EXPERIMENTAL: "1"
+          COSIGN_EXPERIMENTAL: '1'
+          MULTIARCH_IMAGE: ${{ steps.build_docker.outputs.multiarch_image }}
+          VERSION: ${{ steps.version.outputs.version }}
+          CREATED_LATEST_TAG: ${{ steps.build_docker.outputs.created_latest_tag }}
         run: |
           set -euxo pipefail
 
           # Generate SBOM for multi-arch image with version in filename
-          echo "Generating SBOM for multi-arch image: ${{ steps.build_docker.outputs.multiarch_image }}"
-          syft "${{ steps.build_docker.outputs.multiarch_image }}" -o spdx-json > coder_${{ steps.version.outputs.version }}_sbom.spdx.json
+          echo "Generating SBOM for multi-arch image: ${MULTIARCH_IMAGE}"
+          syft "${MULTIARCH_IMAGE}" -o spdx-json > "coder_${VERSION}_sbom.spdx.json"
 
           # Attest SBOM to multi-arch image
-          echo "Attesting SBOM to multi-arch image: ${{ steps.build_docker.outputs.multiarch_image }}"
-          cosign clean --force=true "${{ steps.build_docker.outputs.multiarch_image }}"
+          echo "Attesting SBOM to multi-arch image: ${MULTIARCH_IMAGE}"
+          cosign clean --force=true "${MULTIARCH_IMAGE}"
           cosign attest --type spdxjson \
-            --predicate coder_${{ steps.version.outputs.version }}_sbom.spdx.json \
+            --predicate "coder_${VERSION}_sbom.spdx.json" \
             --yes \
-            "${{ steps.build_docker.outputs.multiarch_image }}"
+            "${MULTIARCH_IMAGE}"
 
           # If latest tag was created, also attest it
-          if [[ "${{ steps.build_docker.outputs.created_latest_tag }}" == "true" ]]; then
+          if [[ "${CREATED_LATEST_TAG}" == "true" ]]; then
             latest_tag="$(./scripts/image_tag.sh --version latest)"
             echo "Generating SBOM for latest image: ${latest_tag}"
             syft "${latest_tag}" -o spdx-json > coder_latest_sbom.spdx.json
@@ -599,7 +607,7 @@ jobs:
       - name: Get latest tag name
         id: latest_tag
         if: ${{ !inputs.dry_run && steps.build_docker.outputs.created_latest_tag == 'true' }}
-        run: echo "tag=$(./scripts/image_tag.sh --version latest)" >> $GITHUB_OUTPUT
+        run: echo "tag=$(./scripts/image_tag.sh --version latest)" >> "$GITHUB_OUTPUT"
 
       # If this is the highest version according to semver, also attest the "latest" tag
       - name: GitHub Attestation for "latest" Docker image
@@ -642,7 +650,7 @@ jobs:
       # Report attestation failures but don't fail the workflow
       - name: Check attestation status
         if: ${{ !inputs.dry_run }}
-        run: |
+        run: | # zizmor: ignore[template-injection] We're just reading steps.attest_x.outcome here, no risk of injection
           if [[ "${{ steps.attest_base.outcome }}" == "failure" && "${{ steps.attest_base.conclusion }}" != "skipped" ]]; then
             echo "::warning::GitHub attestation for base image failed"
           fi
@@ -707,11 +715,11 @@ jobs:
             ./build/*.apk
             ./build/*.deb
             ./build/*.rpm
-            ./coder_${{ steps.version.outputs.version }}_sbom.spdx.json
+            "./coder_${VERSION}_sbom.spdx.json"
           )
 
           # Only include the latest SBOM file if it was created
-          if [[ "${{ steps.build_docker.outputs.created_latest_tag }}" == "true" ]]; then
+          if [[ "${CREATED_LATEST_TAG}" == "true" ]]; then
             files+=(./coder_latest_sbom.spdx.json)
           fi
 
@@ -722,6 +730,8 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           CODER_GPG_RELEASE_KEY_BASE64: ${{ secrets.GPG_RELEASE_KEY_BASE64 }}
+          VERSION: ${{ steps.version.outputs.version }}
+          CREATED_LATEST_TAG: ${{ steps.build_docker.outputs.created_latest_tag }}
 
       - name: Authenticate to Google Cloud
         uses: google-github-actions/auth@b7593ed2efd1c1617e1b0254da33b86225adb2a5 # v2.1.12
@@ -742,12 +752,12 @@ jobs:
           cp "build/provisioner_helm_${version}.tgz" build/helm
           gsutil cp gs://helm.coder.com/v2/index.yaml build/helm/index.yaml
           helm repo index build/helm --url https://helm.coder.com/v2 --merge build/helm/index.yaml
-          gsutil -h "Cache-Control:no-cache,max-age=0" cp build/helm/coder_helm_${version}.tgz gs://helm.coder.com/v2
-          gsutil -h "Cache-Control:no-cache,max-age=0" cp build/helm/provisioner_helm_${version}.tgz gs://helm.coder.com/v2
-          gsutil -h "Cache-Control:no-cache,max-age=0" cp build/helm/index.yaml gs://helm.coder.com/v2
-          gsutil -h "Cache-Control:no-cache,max-age=0" cp helm/artifacthub-repo.yml gs://helm.coder.com/v2
-          helm push build/coder_helm_${version}.tgz oci://ghcr.io/coder/chart
-          helm push build/provisioner_helm_${version}.tgz oci://ghcr.io/coder/chart
+          gsutil -h "Cache-Control:no-cache,max-age=0" cp "build/helm/coder_helm_${version}.tgz" gs://helm.coder.com/v2
+          gsutil -h "Cache-Control:no-cache,max-age=0" cp "build/helm/provisioner_helm_${version}.tgz" gs://helm.coder.com/v2
+          gsutil -h "Cache-Control:no-cache,max-age=0" cp "build/helm/index.yaml" gs://helm.coder.com/v2
+          gsutil -h "Cache-Control:no-cache,max-age=0" cp "helm/artifacthub-repo.yml" gs://helm.coder.com/v2
+          helm push "build/coder_helm_${version}.tgz" oci://ghcr.io/coder/chart
+          helm push "build/provisioner_helm_${version}.tgz" oci://ghcr.io/coder/chart
 
       - name: Upload artifacts to actions (if dry-run)
         if: ${{ inputs.dry_run }}
@@ -798,12 +808,12 @@ jobs:
 
       - name: Update homebrew
         env:
-          # Variables used by the `gh` command
           GH_REPO: coder/homebrew-coder
           GH_TOKEN: ${{ secrets.CDRCI_GITHUB_TOKEN }}
+          VERSION: ${{ needs.release.outputs.version }}
         run: |
           # Keep version number around for reference, removing any potential leading v
-          coder_version="$(echo "${{ needs.release.outputs.version }}" | tr -d v)"
+          coder_version="$(echo "${VERSION}" | tr -d v)"
 
           set -euxo pipefail
 
@@ -822,9 +832,9 @@ jobs:
           wget "$checksums_url" -O checksums.txt
 
           # Get the SHAs
-          darwin_arm_sha="$(cat checksums.txt | grep "darwin_arm64.zip" | awk '{ print $1 }')"
-          darwin_intel_sha="$(cat checksums.txt | grep "darwin_amd64.zip" | awk '{ print $1 }')"
-          linux_sha="$(cat checksums.txt | grep "linux_amd64.tar.gz" | awk '{ print $1 }')"
+          darwin_arm_sha="$(grep "darwin_arm64.zip" checksums.txt | awk '{ print $1 }')"
+          darwin_intel_sha="$(grep "darwin_amd64.zip" checksums.txt | awk '{ print $1 }')"
+          linux_sha="$(grep "linux_amd64.tar.gz" checksums.txt | awk '{ print $1 }')"
 
           echo "macOS arm64: $darwin_arm_sha"
           echo "macOS amd64: $darwin_intel_sha"
@@ -837,7 +847,7 @@ jobs:
 
           # Check if a PR already exists.
           pr_count="$(gh pr list --search "head:$brew_branch" --json id,closed | jq -r ".[] | select(.closed == false) | .id" | wc -l)"
-          if [[ "$pr_count" > 0 ]]; then
+          if [ "$pr_count" -gt 0 ]; then
             echo "Bailing out as PR already exists" 2>&1
             exit 0
           fi
@@ -856,8 +866,8 @@ jobs:
             -B master -H "$brew_branch" \
             -t "coder $coder_version" \
             -b "" \
-            -r "${{ github.actor }}" \
-            -a "${{ github.actor }}" \
+            -r "${GITHUB_ACTOR}" \
+            -a "${GITHUB_ACTOR}" \
             -b "This automatic PR was triggered by the release of Coder v$coder_version"
 
   publish-winget:
@@ -881,6 +891,7 @@ jobs:
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
         with:
           fetch-depth: 0
+          persist-credentials: false
 
       # If the event that triggered the build was an annotated tag (which our
       # tags are supposed to be), actions/checkout has a bug where the tag in
@@ -899,7 +910,7 @@ jobs:
           # The package version is the same as the tag minus the leading "v".
           # The version in this output already has the leading "v" removed but
           # we do it again to be safe.
-          $version = "${{ needs.release.outputs.version }}".Trim('v')
+          $version = $env:VERSION.Trim('v')
 
           $release_assets = gh release view --repo coder/coder "v${version}" --json assets | `
             ConvertFrom-Json
@@ -931,13 +942,14 @@ jobs:
           # For wingetcreate. We need a real token since we're pushing a commit
           # to GitHub and then making a PR in a different repo.
           WINGET_GH_TOKEN: ${{ secrets.CDRCI_GITHUB_TOKEN }}
+          VERSION: ${{ needs.release.outputs.version }}
 
       - name: Comment on PR
         run: |
           # wait 30 seconds
           Start-Sleep -Seconds 30.0
           # Find the PR that wingetcreate just made.
-          $version = "${{ needs.release.outputs.version }}".Trim('v')
+          $version = $env:VERSION.Trim('v')
           $pr_list = gh pr list --repo microsoft/winget-pkgs --search "author:cdrci Coder.Coder version ${version}" --limit 1 --json number | `
             ConvertFrom-Json
           $pr_number = $pr_list[0].number
@@ -948,6 +960,7 @@ jobs:
           # For gh CLI. We need a real token since we're commenting on a PR in a
           # different repo.
           GH_TOKEN: ${{ secrets.CDRCI_GITHUB_TOKEN }}
+          VERSION: ${{ needs.release.outputs.version }}
 
   # publish-sqlc pushes the latest schema to sqlc cloud.
   # At present these pushes cannot be tagged, so the last push is always the latest.
@@ -966,6 +979,7 @@ jobs:
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
         with:
           fetch-depth: 1
+          persist-credentials: false
 
       # We need golang to run the migration main.go
       - name: Setup Go
diff --git a/.github/workflows/security.yaml b/.github/workflows/security.yaml
index 27b5137738..e7fde82bf1 100644
--- a/.github/workflows/security.yaml
+++ b/.github/workflows/security.yaml
@@ -33,6 +33,8 @@ jobs:
 
       - name: Checkout
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+        with:
+          persist-credentials: false
 
       - name: Setup Go
         uses: ./.github/actions/setup-go
@@ -75,6 +77,7 @@ jobs:
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
         with:
           fetch-depth: 0
+          persist-credentials: false
 
       - name: Setup Go
         uses: ./.github/actions/setup-go
@@ -134,12 +137,13 @@ jobs:
           # This environment variables forces scripts/build_docker.sh to build
           # the base image tag locally instead of using the cached version from
           # the registry.
-          export CODER_IMAGE_BUILD_BASE_TAG="$(CODER_IMAGE_BASE=coder-base ./scripts/image_tag.sh --version "$version")"
+          CODER_IMAGE_BUILD_BASE_TAG="$(CODER_IMAGE_BASE=coder-base ./scripts/image_tag.sh --version "$version")"
+          export CODER_IMAGE_BUILD_BASE_TAG
 
           # We would like to use make -j here, but it doesn't work with the some recent additions
           # to our code generation.
           make "$image_job"
-          echo "image=$(cat "$image_job")" >> $GITHUB_OUTPUT
+          echo "image=$(cat "$image_job")" >> "$GITHUB_OUTPUT"
 
       - name: Run Trivy vulnerability scanner
         uses: aquasecurity/trivy-action@dc5a429b52fcf669ce959baa2c2dd26090d2a6c4
diff --git a/.github/workflows/stale.yaml b/.github/workflows/stale.yaml
index c0c2494db6..27ec157fa0 100644
--- a/.github/workflows/stale.yaml
+++ b/.github/workflows/stale.yaml
@@ -102,6 +102,8 @@ jobs:
 
       - name: Checkout repository
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+        with:
+          persist-credentials: false
       - name: Run delete-old-branches-action
         uses: beatlabs/delete-old-branches-action@4eeeb8740ff8b3cb310296ddd6b43c3387734588 # v0.0.11
         with:
diff --git a/.github/workflows/weekly-docs.yaml b/.github/workflows/weekly-docs.yaml
index 8d152f7398..56f5e79930 100644
--- a/.github/workflows/weekly-docs.yaml
+++ b/.github/workflows/weekly-docs.yaml
@@ -27,6 +27,8 @@ jobs:
 
       - name: Checkout
         uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+        with:
+          persist-credentials: false
 
       - name: Check Markdown links
         uses: umbrelladocs/action-linkspector@874d01cae9fd488e3077b08952093235bd626977 # v1.3.7
@@ -41,7 +43,10 @@ jobs:
       - name: Send Slack notification
         if: failure() && github.event_name == 'schedule'
         run: |
-          curl -X POST -H 'Content-type: application/json' -d '{"msg":"Broken links found in the documentation. Please check the logs at ${{ env.LOGS_URL }}"}' ${{ secrets.DOCS_LINK_SLACK_WEBHOOK }}
+          curl \
+            -X POST \
+            -H 'Content-type: application/json' \
+            -d '{"msg":"Broken links found in the documentation. Please check the logs at '"${LOGS_URL}"'"}' "${{ secrets.DOCS_LINK_SLACK_WEBHOOK }}"
           echo "Sent Slack notification"
         env:
           LOGS_URL: https://github.com/coder/coder/actions/runs/${{ github.run_id }}
diff --git a/Makefile b/Makefile
index a5341ee79f..e72a1f7b62 100644
--- a/Makefile
+++ b/Makefile
@@ -559,7 +559,9 @@ else
 endif
 .PHONY: fmt/markdown
 
-lint: lint/shellcheck lint/go lint/ts lint/examples lint/helm lint/site-icons lint/markdown
+# Note: we don't run zizmor in the lint target because it takes a while. CI
+#       runs it explicitly.
+lint: lint/shellcheck lint/go lint/ts lint/examples lint/helm lint/site-icons lint/markdown lint/actions/actionlint
 .PHONY: lint
 
 lint/site-icons:
@@ -598,6 +600,20 @@ lint/markdown: node_modules/.installed
 	pnpm lint-docs
 .PHONY: lint/markdown
 
+lint/actions: lint/actions/actionlint lint/actions/zizmor
+.PHONY: lint/actions
+
+lint/actions/actionlint:
+	go run github.com/rhysd/actionlint/cmd/actionlint@v1.7.7
+.PHONY: lint/actions/actionlint
+
+lint/actions/zizmor:
+	./scripts/zizmor.sh \
+		--strict-collection \
+		--persona=regular \
+		.
+.PHONY: lint/actions/zizmor
+
 # All files generated by the database should be added here, and this can be used
 # as a target for jobs that need to run after the database is generated.
 DB_GEN_FILES := \
diff --git a/docs/tutorials/testing-templates.md b/docs/tutorials/testing-templates.md
index bcfa33a74e..025c0d6ace 100644
--- a/docs/tutorials/testing-templates.md
+++ b/docs/tutorials/testing-templates.md
@@ -86,7 +86,7 @@ jobs:
 
       - name: Get short commit SHA to use as template version name
         id: name
-        run: echo "version_name=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
+        run: echo "version_name=$(git rev-parse --short HEAD)" >> "$GITHUB_OUTPUT"
 
       - name: Get latest commit title to use as template version description
         id: message
diff --git a/scripts/zizmor.sh b/scripts/zizmor.sh
new file mode 100755
index 0000000000..a9326e2ee0
--- /dev/null
+++ b/scripts/zizmor.sh
@@ -0,0 +1,46 @@
+#!/usr/bin/env bash
+
+# Usage: ./zizmor.sh [args...]
+#
+# This script is a wrapper around the zizmor Docker image. Zizmor lints GitHub
+# actions workflows.
+#
+# We use Docker to run zizmor since it's written in Rust and is difficult to
+# install on Ubuntu runners without building it with a Rust toolchain, which
+# takes a long time.
+#
+# The repo is mounted at /repo and the working directory is set to /repo.
+
+set -euo pipefail
+# shellcheck source=scripts/lib.sh
+source "$(dirname "${BASH_SOURCE[0]}")/lib.sh"
+
+cdroot
+
+image_tag="ghcr.io/zizmorcore/zizmor:1.11.0"
+docker_args=(
+	"--rm"
+	"--volume" "$(pwd):/repo"
+	"--workdir" "/repo"
+	"--network" "host"
+)
+
+if [[ -t 0 ]]; then
+	docker_args+=("-it")
+fi
+
+# If no GH_TOKEN is set, try to get one from `gh auth token`.
+if [[ "${GH_TOKEN:-}" == "" ]] && command -v gh &>/dev/null; then
+	set +e
+	GH_TOKEN="$(gh auth token)"
+	export GH_TOKEN
+	set -e
+fi
+
+# Pass through the GitHub token if it's set, which allows zizmor to scan
+# imported workflows too.
+if [[ "${GH_TOKEN:-}" != "" ]]; then
+	docker_args+=("--env" "GH_TOKEN")
+fi
+
+logrun exec docker run "${docker_args[@]}" "$image_tag" "$@"