| Component | OpenClaw |
| Severity | medium (CVSS 6.5) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| Published (NVD) | 2026-03-31 |
| Last modified | 2026-07-24 |
| Affected versions | openclaw < 2026.3.12 |
| Fixed in | 2026.3.12 |
| Weakness | CWE-307 |
| CISA KEV | not listed |
NVD description
OpenClaw before 2026.3.12 applies rate limiting only after successful webhook authentication, allowing attackers to bypass rate limits and brute-force webhook secrets. Attackers can submit repeated authentication requests with invalid secrets without triggering rate limit responses, enabling systematic secret guessing and subsequent forged webhook submission.
What to do
- Upgrade OpenClaw to
2026.3.12or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-34505
- https://github.com/openclaw/openclaw/security/advisories/GHSA-5m9r-p9g7-679c
- https://www.vulncheck.com/advisories/openclaw-webhook-rate-limiting-bypass-via-pre-authentication-secret-validation
Read more
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