| Component | OpenClaw |
| Severity | medium (CVSS 5.1) |
| CVSS vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| Published (NVD) | 2026-04-09 |
| Last modified | 2026-06-17 |
| Affected versions | openclaw < 2026.3.23 |
| Fixed in | 2026.3.23 |
| Weakness | CWE-288 |
| CISA KEV | not listed |
NVD description
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.
What to do
- Upgrade OpenClaw to
2026.3.23or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-35634
- https://github.com/openclaw/openclaw/security/advisories/GHSA-6mqc-jqh6-x8fc
- https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87
- https://github.com/openclaw/openclaw/commit/d5dc6b6573ae489bc7e5651090f4767b93537c9e
- https://www.vulncheck.com/advisories/openclaw-authentication-bypass-via-local-direct-requests-in-canvas-gateway
Read more
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