CVE-2026-55429

Description

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, `UpsertWorkspaceApp` overwrites an existing app's `agent_id` on a primary-key conflict and `insertAgentApp` accepts the app ID from the provisioner's `CompleteJob` payload without verifying it belongs to the workspace being built. `CompleteJob` runs under `dbauthz.AsProvisionerd` so the authorization layer does not block the cross-workspace upsert. Exploitation requires elevated access as a template author or external provisioner operator. The fix in versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2 verifies that any existing `workspace_apps` row matching the supplied ID belongs to the workspace being built and rejects cross-workspace agent reassignment. No known workarounds are available.

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Produits concernés

• coder
• Coder coder

Scores CVSS

Faiblesses (CWE)

• CWE-639

Références

• https://github.com/coder/coder/pull/26103 Issue TrackingPatch
• https://github.com/coder/coder/releases/tag/v2.29.17 Release Notes
• https://github.com/coder/coder/releases/tag/v2.32.7 Release Notes
• https://github.com/coder/coder/releases/tag/v2.33.8 Release Notes
• https://github.com/coder/coder/releases/tag/v2.34.2 Release Notes
• https://github.com/coder/coder/security/advisories/GHSA-9rjw-3gwp-f59v PatchVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories