Vulnerability Description
OpenClaw (npm package 'openclaw') versions >= 2026.5.12 and < 2026.8.1 do not immediately invalidate Canvas HTTP authorization when a paired node is revoked. Node revocation invalidates the WebSocket client, but Canvas HTTP authorization continues to accept and renew the previously granted capability until WebSocket close cleanup completes. As a result, a revoked paired node can continue exercising its Canvas capability against the capability's configured routes during the close grace period. The issue is fixed in 2026.8.1; as a workaround, restart the Gateway after revoking a node that has Canvas access.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/openclaw/openclaw/security/advisories/GHSA-g697-vv6h-r8hv
- https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-canvas-capability-
FAQ
What is CVE-2026-100554?
CVE-2026-100554 is a vulnerability with a CVSS score of 4.2 (MEDIUM). OpenClaw (npm package 'openclaw') versions >= 2026.5.12 and < 2026.8.1 do not immediately invalidate Canvas HTTP authorization when a paired node is revoked. Node revocation invalidates the WebSocket ...
How severe is CVE-2026-100554?
CVE-2026-100554 has been rated MEDIUM with a CVSS base score of 4.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-100554?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.