CVE-2026-53977

Description

OpenChamber 1.11.7 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to terminate the server process by sending a POST request to the /api/system/shutdown endpoint, which is registered before the authentication middleware in the Express route handler chain. Attackers can exploit the route registration order in bootstrap-runtime.js to reach the shutdown handler before auth middleware executes, causing denial of service to all active AI coding sessions and locking out legitimate remote users regardless of whether UI_PASSWORD is configured.

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Produits concernés

• Bohdan Triapitsyn OpenChamber

Scores CVSS

Faiblesses (CWE)

• CWE-306

Références

• https://github.com/openchamber/openchamber
• https://github.com/openchamber/openchamber/commit/f1b9506132faf6c564a2694c7f33b94421a49b4a
• https://www.vulncheck.com/advisories/openchamber-unauthenticated-dos-via-api-system-shutdown

Ailleurs

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