Vulnerability Description
OpenClaw versions prior to 2026.2.13 use non-constant-time string comparison for hook token validation, allowing attackers to infer tokens through timing measurements. Remote attackers with network access to the hooks endpoint can exploit timing side-channels across multiple requests to gradually recover the authentication token.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openclaw | Openclaw | < 2026.2.13 |
Related Weaknesses (CWE)
References
- https://github.com/openclaw/openclaw/commit/113ebfd6a23c4beb8a575d48f74825932545Patch
- https://github.com/openclaw/openclaw/security/advisories/GHSA-47q7-97xp-m272Vendor Advisory
- https://www.vulncheck.com/advisories/openclaw-timing-attack-via-hook-token-compaThird Party Advisory
FAQ
What is CVE-2026-28475?
CVE-2026-28475 is a vulnerability with a CVSS score of 4.8 (MEDIUM). OpenClaw versions prior to 2026.2.13 use non-constant-time string comparison for hook token validation, allowing attackers to infer tokens through timing measurements. Remote attackers with network ac...
How severe is CVE-2026-28475?
CVE-2026-28475 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-28475?
Check the references section above for vendor advisories and patch information. Affected products include: Openclaw Openclaw.