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CVE

CVE-2026-26319

OpenClaw has Missing Webhook Authentication in Telnyx Provider Allowing Unauthenticated Requests
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CVE

CVE-2026-26319

OpenClaw has Missing Webhook Authentication in Telnyx Provider Allowing Unauthenticated Requests

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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
7.5
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
C
H
U
7.5
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Related Resources

No items found.

References

https://github.com/openclaw/openclaw/releases/tag/v2026.2.14, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26319.json, https://github.com/openclaw/openclaw/security/advisories/GHSA-4hg8-92x6-h2f3, https://nvd.nist.gov/vuln/detail/CVE-2026-26319, https://github.com/openclaw/openclaw/commit/29b587e73cbdc941caec573facd16e87d52f007b, https://github.com/openclaw/openclaw/commit/f47584fec86d6d73f2d483043a2ad0e7e3c50411

Severity

7.5

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
7.5
EPSS Probability
0.00047%
EPSS Percentile
0.14444%
Introduced Version
0
Fix Available
b5ab92eef4e4f6099c98817e0917c99ec9e03045

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