Seth Shelnutt 8eb7051987 fix(scripts/ironbank): update base image to UBI9 and remove urllib3 (CVE-2026-44431) (#25217)
The IronBank Dockerfile used UBI8-minimal:8.7 as its base image.
IronBank has migrated images to UBI9 base, and the bundled urllib3
1.26.5 in the image triggers CVE-2026-44431 (sensitive headers leaked on
cross-origin redirects via the low-level API).

This updates the base image from UBI8-minimal to UBI9-minimal and
explicitly removes python3-urllib3 after package installation. Coder is
a Go binary and does not invoke Python at runtime, so urllib3 is unused.

Refs
[ENT-4](https://linear.app/codercom/issue/ENT-4/ironbank-v23111-update-urllib3-from-1265-to-fix-cve-2026-44431),
[ENT-51](https://linear.app/codercom/issue/ENT-51/ironbank-main-update-base-image-urllib3-cve-2026-44431),
[CVE-2026-44431](https://nvd.nist.gov/vuln/detail/CVE-2026-44431)

> Generated by Coder Agents

<details><summary>Decision log</summary>

- **Base image**: Moved from `ubi8-minimal:8.7` to `ubi9-minimal:9.6` to
align with IronBank's UBI9 migration and reduce overall vulnerability
surface.
- **urllib3 removal**: Added explicit `microdnf remove python3-urllib3`
with error suppression (`|| true`) so the build succeeds whether or not
the package is present in the base image. This handles both the minimal
and full UBI9 base image variants that IronBank may use.
- **Crypto policies**: RHEL 9 uses the same
`/etc/crypto-policies/back-ends/*.config` paths as RHEL 8; no changes
needed.
- **Build script**: Updated the `registry.access.redhat.com` override
from `ubi8/ubi-minimal:8.7` to `ubi9/ubi-minimal:9.6` for local builds.

</details>
2026-05-13 10:41:56 -04:00
2022-04-04 11:55:06 -05:00

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Coder is a self-hosted platform for cloud development environments and AI coding agents. Workspaces are defined with Terraform, connected through a secure Wireguard® tunnel, and automatically shut down when not used. Coder Agents runs a native AI coding agent whose loop executes in the control plane on your infrastructure, with no API keys in workspaces.

  • Define cloud development environments in Terraform
    • EC2 VMs, Kubernetes Pods, Docker Containers, etc.
  • Automatically shutdown idle resources to save on costs
  • Onboard developers in seconds instead of days
  • Delegate coding work to AI agents on your infrastructure
    • Bring any model (Anthropic, OpenAI, Google, Bedrock, self-hosted)
    • No LLM credentials in workspaces, user identity on every action
    • Centralized model governance, cost tracking, and audit logging

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Quickstart

The most convenient way to try Coder is to install it on your local machine and experiment with provisioning cloud development environments using Docker (works on Linux, macOS, and Windows).

# First, install Coder
curl -L https://coder.com/install.sh | sh

# Start the Coder server (caches data in ~/.cache/coder)
coder server

# Navigate to http://localhost:3000 to create your initial user,
# create a Docker template and provision a workspace

Install

The easiest way to install Coder is to use the install script for Linux and macOS. For Windows, use the latest ..._installer.exe file from GitHub Releases.

curl -L https://coder.com/install.sh | sh

You can run the install script with --dry-run to see the commands that will be used to install without executing them. Run the install script with --help for additional flags.

See install for additional methods.

Once installed, you can start a production deployment with a single command:

# Automatically sets up an external access URL on *.try.coder.app
coder server

# Requires a PostgreSQL instance (version 13 or higher) and external access URL
coder server --postgres-url <url> --access-url <url>

Use coder --help to get a list of flags and environment variables. See the install guides for a complete tutorial.

Documentation

Browse the documentation or visit a specific section below:

  • Workspaces: Workspaces contain the IDEs, dependencies, and configuration information needed for software development
  • Templates: Templates are written in Terraform and describe the infrastructure for workspaces
  • Coder Agents: Delegate coding work to AI agents running on your self-hosted infrastructure
  • Administration: Learn how to operate Coder
  • Premium: Learn about paid features built for large teams
  • IDEs: Connect your existing editor to a workspace

Support

Feel free to open an issue if you have questions, run into bugs, or have a feature request.

Join our Discord to provide feedback on in-progress features and chat with the community using Coder!

Integrations

New integrations are always in progress. Open an issue to request one. Contributions are welcome in any official or community repository.

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New contributors are always welcome. If you are new to the Coder codebase, see the contribution guide to get started.

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