Vulnerability Description
OpenClaw versions prior to 2026.2.14 contain a webhook signature-verification bypass in the voice-call extension that allows unauthenticated requests when the tunnel.allowNgrokFreeTierLoopbackBypass option is explicitly enabled. An external attacker can send forged requests to the publicly reachable webhook endpoint without a valid X-Twilio-Signature header, resulting in unauthorized webhook event handling and potential request flooding attacks.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openclaw | Openclaw | < 2026.2.14 |
Related Weaknesses (CWE)
References
- https://github.com/openclaw/openclaw/commit/ff11d8793b90c52f8d84dae3fbb99307da51Patch
- https://github.com/openclaw/openclaw/security/advisories/GHSA-c37p-4qqg-3p76Vendor Advisory
- https://www.vulncheck.com/advisories/openclaw-webhook-signature-verification-bypThird Party Advisory
FAQ
What is CVE-2026-29606?
CVE-2026-29606 is a vulnerability with a CVSS score of 6.5 (MEDIUM). OpenClaw versions prior to 2026.2.14 contain a webhook signature-verification bypass in the voice-call extension that allows unauthenticated requests when the tunnel.allowNgrokFreeTierLoopbackBypass o...
How severe is CVE-2026-29606?
CVE-2026-29606 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-29606?
Check the references section above for vendor advisories and patch information. Affected products include: Openclaw Openclaw.