---
id: CVE-2026-55433
aliases:
  - GHSA-jqj2-x4c5-jfxm
title: >-
  Coder: Devcontainer recreate endpoint missing write authorization allows
  read-only roles to destroy containers
summary: >-
  Coder: Devcontainer recreate endpoint missing write authorization allows
  read-only roles to destroy containers
severity: medium
cvss: 5.4
cwe:
  - CWE-862
vendor: coder
product: github.com/coder/coder/v2
ecosystem: go
affected:
  - 'github.com/coder/coder/v2 >= 2.34.0, < 2.34.2'
  - 'github.com/coder/coder/v2 >= 2.33.0, < 2.33.8'
  - 'github.com/coder/coder/v2 >= 2.30.0, < 2.32.7'
  - github.com/coder/coder/v2 < 2.29.17
patched:
  - github.com/coder/coder/v2 2.34.2
  - github.com/coder/coder/v2 2.33.8
  - github.com/coder/coder/v2 2.32.7
  - github.com/coder/coder/v2 2.29.17
published: '2026-07-06'
updated: '2026-07-06'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-jqj2-x4c5-jfxm'
references:
  - url: 'https://github.com/coder/coder/security/advisories/GHSA-jqj2-x4c5-jfxm'
  - url: 'https://github.com/coder/coder/pull/25812'
  - url: 'https://github.com/advisories/GHSA-jqj2-x4c5-jfxm'
tags:
  - ghsa
  - go
ingestedAt: '2026-07-06T21:45:52.954Z'
epss: 0.00394
epssPercentile: 0.33404
---

## Overview

### Summary

The devcontainer recreate endpoint relied on route middleware that checked only `ActionRead` on the workspace and, unlike the sibling delete endpoint, performed no `ActionUpdate` check before triggering the destructive rebuild.

> **Note:** Exploitation requires an existing low-privilege role with access to the target workspace.

### Impact

Any authenticated principal with read-only workspace access, such as a Template Admin or Org Template Admin, could recreate a devcontainer, destroying uncommitted in-container state and, if called repeatedly, denying service. This is an authorization bypass leading to data loss and denial of service.

### Patches

The fix adds an explicit `ActionUpdate` authorization check before the agent is dialed like the delete endpoint.

The fix was backported to all supported release lines:

| Release line | Patched version |
|---|---|
| 2.34 | [v2.34.2](https://github.com/coder/coder/releases/tag/v2.34.2) |
| 2.33 | [v2.33.8](https://github.com/coder/coder/releases/tag/v2.33.8) |
| 2.32 | [v2.32.7](https://github.com/coder/coder/releases/tag/v2.32.7) |
| 2.29 (ESR) | [v2.29.17](https://github.com/coder/coder/releases/tag/v2.29.17) |

### Workarounds

None.

### Resources

- Fix: #25812

### Credits

Coder would like to thank Anthropic's Security Team (ANT-2026-22454) for independently disclosing this issue!

## Affected packages

- `github.com/coder/coder/v2 >= 2.34.0, < 2.34.2`
- `github.com/coder/coder/v2 >= 2.33.0, < 2.33.8`
- `github.com/coder/coder/v2 >= 2.30.0, < 2.32.7`
- `github.com/coder/coder/v2 < 2.29.17`

## Remediation

Upgrade to a patched release:

- `github.com/coder/coder/v2 2.34.2`
- `github.com/coder/coder/v2 2.33.8`
- `github.com/coder/coder/v2 2.32.7`
- `github.com/coder/coder/v2 2.29.17`