CVE-2026-26319 (GCVE-0-2026-26319)
Vulnerability from cvelistv5 – Published: 2026-02-19 22:05 – Updated: 2026-02-20 15:41
VLAI
EPSS
VEX
Title
OpenClaw has Missing Webhook Authentication in Telnyx Provider Allowing Unauthenticated Requests
Summary
OpenClaw is a personal AI assistant. Versions 2026.2.13 and below allow the optional @openclaw/voice-call plugin Telnyx webhook handler to accept unsigned inbound webhook requests when telnyx.publicKey is not configured, enabling unauthenticated callers to forge Telnyx events. Telnyx webhooks are expected to be authenticated via Ed25519 signature verification. In affected versions, TelnyxProvider.verifyWebhook() could effectively fail open when no Telnyx public key was configured, allowing arbitrary HTTP POST requests to the voice-call webhook endpoint to be treated as legitimate Telnyx events. This only impacts deployments where the Voice Call plugin is installed, enabled, and the webhook endpoint is reachable from the attacker (for example, publicly exposed via a tunnel/proxy). The issue has been fixed in version 2026.2.14.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-20 15:32 UTC
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
GitHub_M
CNA
References
4 references
| URL | Tags |
|---|---|
| https://github.com/openclaw/openclaw/security/adv… | x_refsource_CONFIRM |
| https://github.com/openclaw/openclaw/commit/29b58… | x_refsource_MISC |
| https://github.com/openclaw/openclaw/commit/f4758… | x_refsource_MISC |
| https://github.com/openclaw/openclaw/releases/tag… | x_refsource_MISC |
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