Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openclaw | Openclaw | < 2026.3.22 |
Related Weaknesses (CWE)
References
- https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dPatch
- https://github.com/openclaw/openclaw/commit/fc2d29ea926f47c428c556e92ec981441228Patch
- https://github.com/openclaw/openclaw/security/advisories/GHSA-844j-xrrq-wgh4Vendor Advisory
- https://www.vulncheck.com/advisories/openclaw-xff-loopback-spoofing-bypass-in-caThird Party Advisory
FAQ
What is CVE-2026-35656?
CVE-2026-35656 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 ...
How severe is CVE-2026-35656?
CVE-2026-35656 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-35656?
Check the references section above for vendor advisories and patch information. Affected products include: Openclaw Openclaw.