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  5. CVE-2026-55433

CVE-2026-55433: Coder: Devcontainer recreate endpoint missing write authorization allows read-only roles to destroy containers

July 6, 2026

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.

References

  • github.com/advisories/GHSA-jqj2-x4c5-jfxm
  • github.com/coder/coder/pull/25812
  • github.com/coder/coder/security/advisories/GHSA-jqj2-x4c5-jfxm
  • nvd.nist.gov/vuln/detail/CVE-2026-55433

Code Behaviors & Features

Detect and mitigate CVE-2026-55433 with GitLab Dependency Scanning

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Affected versions

All versions before 2.29.17, all versions starting from 2.30.0 before 2.32.7, all versions starting from 2.33.0 before 2.33.8, all versions starting from 2.34.0 before 2.34.2

Fixed versions

  • 2.29.17
  • 2.32.7
  • 2.33.8
  • 2.34.2

Solution

Upgrade to versions 2.29.17, 2.32.7, 2.33.8, 2.34.2 or above.

Impact 5.4 MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Learn more about CVSS

Weakness

  • CWE-862: Missing Authorization

Source file

go/github.com/coder/coder/v2/CVE-2026-55433.yml

Spotted a mistake? Edit the file on GitLab.

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