CVE-2026-29606 — OpenClaw < 2026.2.14 - Webhook Signature Verification Bypass via ngrok Loopback Compatibility
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.allowNgrokF…
Published: 2026-03-05 · CVSS: 6.3 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7