| Component | OpenClaw |
| Severity | medium (CVSS 6.5) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| Published (NVD) | 2026-04-10 |
| Last modified | 2026-06-17 |
| Affected versions | openclaw < 2026.3.22 |
| Fixed in | 2026.3.22 |
| Weakness | CWE-290 |
| CISA KEV | not listed |
NVD description
OpenClaw before 2026.3.22 contains an authentication bypass vulnerability in the X-Forwarded-For header processing when trustedProxies is configured, allowing attackers to spoof loopback hops. Remote attackers can inject forged forwarding headers to bypass canvas authentication and rate-limiting protections by masquerading as loopback clients.
What to do
- Upgrade OpenClaw to
2026.3.22or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-35656
- https://github.com/openclaw/openclaw/security/advisories/GHSA-844j-xrrq-wgh4
- https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87
- https://github.com/openclaw/openclaw/commit/fc2d29ea926f47c428c556e92ec981441228d2a4
- https://www.vulncheck.com/advisories/openclaw-xff-loopback-spoofing-bypass-in-canvas-authentication-and-rate-limiter
Read more
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