CVE-2026-35634

MEDIUM5.1

OpenClaw < 2026.3.23 - Authentication Bypass via Local-Direct Requests in Canvas Gateway

Published Apr 9, 2026

Modified 1 weeks ago

Details

OpenClaw before 2026.3.23 contains an authentication bypass vulnerability in the Canvas gateway where authorizeCanvasRequest() unconditionally allows local-direct requests without validating bearer tokens or canvas capabilities. Attackers can send unauthenticated loopback HTTP and WebSocket requests to Canvas routes to bypass authentication and gain unauthorized access.

References

FIX

https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87

FIX

https://github.com/openclaw/openclaw/commit/d5dc6b6573ae489bc7e5651090f4767b93537c9e

ADVISORY

https://github.com/openclaw/openclaw/security/advisories/GHSA-6mqc-jqh6-x8fc

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-35634

ADVISORY

https://www.vulncheck.com/advisories/openclaw-authentication-bypass-via-local-direct-requests-in-canvas-gateway

CVSS Analysis