CVE-2026-55433: Coder allows organizations to provision remote develop
CVE-2026-55433 analysis covering impact, affected products, versions, remediation, and cross-checked defender guidance.
CVE-2026-55433 is a vulnerability published by NVD on 7/8/2026.
What happened
Coder allows organizations to provision remote development environments via Terraform. Prior to versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2, 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. Exploitation requires an existing low-privilege role with access to the target workspace. The fix in versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2 adds an explicit `ActionUpdate` authorization check before the agent is dialed like the delete endpoint. No known workarounds are available.
Affected products and versions
- coder coder unspecified version (before 2.29.17)
- coder coder unspecified version (from 2.30.0 before 2.32.7)
- coder coder unspecified version (from 2.33.0 before 2.33.8)
- coder coder unspecified version (from 2.34.0 before 2.34.2)
Severity and weakness
CVSS: MEDIUM 5.4. Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L.
Weaknesses: CWE-862.
Known exploitation
No CISA KEV entry is currently attached to the NVD record.
What defenders should do
- Identify whether the affected product and version range exists in production.
- Review vendor advisories and release notes before change windows.
- Patch, upgrade, disable the vulnerable component, or apply vendor mitigations.
- Verify the running version after deployment, not only the package inventory.
Official and supporting references
- https://github.com/coder/coder/pull/25812
- https://github.com/coder/coder/releases/tag/v2.29.17
- https://github.com/coder/coder/releases/tag/v2.32.7
- https://github.com/coder/coder/releases/tag/v2.33.8
- https://github.com/coder/coder/releases/tag/v2.34.2
- https://github.com/coder/coder/security/advisories/GHSA-jqj2-x4c5-jfxm