CVE-2026-29606

MediumCVSS 6.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Weakness enumeration

CWE-306

Affected software

Vendor	Product	Versions
OpenClaw	OpenClaw	< 2026.2.14

References

Timeline

Published: Mar 5, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

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