Vulnerability Description
OpenClaw before 2026.3.25 contains a missing rate limiting vulnerability in Telegram webhook authentication that allows attackers to brute-force weak webhook secrets. The vulnerability enables repeated authentication guesses without throttling, permitting attackers to systematically guess webhook secrets through brute-force attacks.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openclaw | Openclaw | < 2026.3.25 |
Related Weaknesses (CWE)
References
- https://github.com/openclaw/openclaw/commit/c2c136ae9517ddd0789d742a0fdf4c10e8c7Patch
- https://github.com/openclaw/openclaw/security/advisories/GHSA-vcx4-4qxg-mfp4Vendor Advisory
- https://www.vulncheck.com/advisories/openclaw-brute-force-attack-via-missing-telThird Party Advisory
FAQ
What is CVE-2026-35628?
CVE-2026-35628 is a vulnerability with a CVSS score of 4.8 (MEDIUM). OpenClaw before 2026.3.25 contains a missing rate limiting vulnerability in Telegram webhook authentication that allows attackers to brute-force weak webhook secrets. The vulnerability enables repeate...
How severe is CVE-2026-35628?
CVE-2026-35628 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-2026-35628?
Check the references section above for vendor advisories and patch information. Affected products include: Openclaw Openclaw.