CVE-2026-53977

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

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

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-06 16:16

Updated : 2026-09-16 20:18

NVD link : CVE-2026-53977

Mitre link : CVE-2026-53977

CVE.ORG link : CVE-2026-53977

JSON object : View

Products Affected

No product.

CWE

CWE-306

Missing Authentication for Critical Function

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