요약
- CVE-2026-29606은(는) openclaw (openclaw), openclaw에 영향을 주는 보통 (CVSS 6.5) 취약점입니다.
- 향후 30일 내 악용 확률(EPSS): 0.33%, 전체 취약점의 26.6%보다 높음.
- 조치: 2026.2.14 이상으로 업데이트하세요.
| Package | Affected versions | Patched versions |
|---|
| openclaw | < 2026.2.14
| 2026.2.14
|
| openclaw npm | < 2026.2.14
| 2026.2.14
|
Description
Summary
A Twilio webhook signature-verification bypass in the voice-call extension could allow unauthenticated webhook requests when a specific ngrok free-tier compatibility option is enabled.
Impact
This issue is limited to configurations that explicitly enable and expose the voice-call webhook endpoint.
Not affected by default:
- The voice-call extension is optional and disabled by default.
- The bypass only applied when
tunnel.allowNgrokFreeTierLoopbackBypass was explicitly enabled.
- Exploitation required the webhook to be reachable (typically via a public ngrok URL during development).
Worst case (when exposed and the option was enabled):
- An external attacker could send forged requests to the publicly reachable webhook endpoint that would be accepted without a valid
X-Twilio-Signature.
- This could result in unauthorized webhook event handling (integrity) and request flooding (availability).
Affected Packages / Versions
- Package:
openclaw (npm)
- Affected versions:
<= 2026.2.13 (latest published as of 2026-02-14)
- Patched versions:
>= 2026.2.14 (planned next release; pending publish)
Fix
allowNgrokFreeTierLoopbackBypass no longer bypasses signature verification. It only enables trusting forwarded headers on loopback so the public ngrok URL can be reconstructed for correct signature validation.
Fix commit(s):
- ff11d8793b90c52f8d84dae3fbb99307da51b5c9
Thanks @p80n-sec for reporting.
NVD 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.
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