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.
Metrics
CVSS 3.1 6.5/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| OpenClaw | OpenClaw | < 2026.3.25 |
References
- https://github.com/openclaw/openclaw/commit/c2c136ae9517ddd0789d742a0fdf4c10e8c729a7Patch
- https://github.com/openclaw/openclaw/security/advisories/GHSA-vcx4-4qxg-mfp4Vendor Advisory
- https://www.vulncheck.com/advisories/openclaw-brute-force-attack-via-missing-telegram-webhook-rate-limitingThird Party Advisory
Timeline
- Published
- Apr 9, 2026
- Last modified
- Jun 17, 2026
- NVD status
- Analyzed