| Component | OpenClaw |
| Severity | medium (CVSS 4.2) |
| CVSS vector | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N |
| Published (NVD) | 2026-09-26 |
| Last modified | 2026-09-28 |
| Affected versions | < 2026.8.1 read from the advisory text: NVD has not published CPE data yet |
| Fixed in | 2026.8.1 |
| Weakness | CWE-613 |
| CISA KEV | not listed |
NVD 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.
What to do
- Upgrade OpenClaw to
2026.8.1or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-100554
- https://github.com/openclaw/openclaw/security/advisories/GHSA-g697-vv6h-r8hv
- https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-canvas-capability-revocation-bypass
Read more
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