Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| OpenClaw / OpenClaw | affected 0 before 2026.2.14 |
CWE
CWE-306
References
- https://github.com/openclaw/openclaw/security/advisories/GHSA-c37p-4qqg-3p76
- https://github.com/openclaw/openclaw/commit/ff11d8793b90c52f8d84dae3fbb99307da51b5c9
- https://www.vulncheck.com/advisories/openclaw-webhook-signature-verification-bypass-via-ngrok-loopback-compatibility
ADP enrichment
No English description supplied.
No references supplied.