CVE-2026-29606

CVSS v3 4.8 MEDIUM

4.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

O

penClaw 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.

References

Link	Resource
https://github.com/openclaw/openclaw/commit/ff11d8793b90c52f8d84dae3fbb99307da51b5c9
https://github.com/openclaw/openclaw/security/advisories/GHSA-c37p-4qqg-3p76
https://www.vulncheck.com/advisories/openclaw-webhook-signature-verification-bypass-via-ngrok-loopback-compatibility

Configurations

No configuration.

History

05 Mar 2026, 23:16

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~9.8~~	v2 : unknown v3 : 4.8

05 Mar 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-05 22:16

Updated : 2026-03-05 23:16

NVD link : CVE-2026-29606

Mitre link : CVE-2026-29606

CVE.ORG link : CVE-2026-29606

JSON object : View

Products Affected

No product.

CWE

CWE-306

Missing Authentication for Critical Function

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