Vulnerability Description
OpenClaw before 2026.3.25 contains a missing rate limiting vulnerability in webhook authentication that allows attackers to brute-force weak webhook passwords without throttling. Remote attackers can repeatedly submit incorrect password guesses to the webhook endpoint to compromise authentication and gain unauthorized access.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openclaw | Openclaw | < 2026.3.25 |
Related Weaknesses (CWE)
References
- https://github.com/openclaw/openclaw/commit/5e08ce36d522a1c96df2bfe88e39303ae264Patch
- https://github.com/openclaw/openclaw/security/advisories/GHSA-xq8g-hgh6-87hvVendor Advisory
- https://www.vulncheck.com/advisories/openclaw-brute-force-attack-via-missing-webThird Party Advisory
FAQ
What is CVE-2026-35623?
CVE-2026-35623 is a vulnerability with a CVSS score of 4.8 (MEDIUM). OpenClaw before 2026.3.25 contains a missing rate limiting vulnerability in webhook authentication that allows attackers to brute-force weak webhook passwords without throttling. Remote attackers can ...
How severe is CVE-2026-35623?
CVE-2026-35623 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-2026-35623?
Check the references section above for vendor advisories and patch information. Affected products include: Openclaw Openclaw.