CVE-2026-29606

Medium

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.

SeverityMedium

CVSS6.5

Exploit probability—

ProductOpenclaw

PublishedMar 5, 2026

First seenMar 5, 2026

Weakness typeCWE-306Missing authentication for critical function

How to fix

Update

openclaw openclaw2026.2.14 or later
openclaw2026.2.14 or later

Patches

github.com/openclaw/openclaw/commit/ff11d8793b90c52f8d84dae3fbb99307da51b5c9

Vendor advisories

github.com/openclaw/openclaw/security/advisories/GHSA-c37p-4qqg-3p76

Affected products

Product	Affected versions	Fixed in
openclaw openclaw	v < 2026.2.14	2026.2.14
openclawnpm	v < 2026.2.14	2026.2.14

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