CVE-2026-35634mediumCWE-288

CVE-2026-35634: medium-severity vulnerability in OpenClaw

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

Published · Updated

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 5.1epss 0.2%
exploitation probability
0.2%top 90% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Affected products
OpenClaw · OpenClaw
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In the same product, most dangerous first.

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References
https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87https://github.com/openclaw/openclaw/commit/d5dc6b6573ae489bc7e5651090f4767b93537c9ehttps://github.com/openclaw/openclaw/security/advisories/GHSA-6mqc-jqh6-x8fchttps://www.vulncheck.com/advisories/openclaw-authentication-bypass-via-local-direct-requests-in-canvas-gateway