Vulnerability Report

CVE-2026-26319

Title: Feishu extension Telnyx webhook forgery in OpenClaw

Auth Bypass

Proof Of Concept

No public PoC currently indexed for CVE-2026-26319.

CWE Category CWE-306

Published Date Feb 19, 2026

Modified Date Feb 20, 2026

Exploit Status Not Found

Score 7.5 CVSS v3.1

Exploit Probability (EPSS)

0.28%

Vulnerability Summary

CVE-2026-26319: 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.

Impacted Vendors

openclaw 1

Reference Links

https://github.com/openclaw/openclaw/commit/29b587e73cbdc941caec573facd16e87d52f007b https://github.com/openclaw/openclaw/commit/f47584fec86d6d73f2d483043a2ad0e7e3c50411 https://github.com/openclaw/openclaw/releases/tag/v2026.2.14 https://github.com/openclaw/openclaw/security/advisories/GHSA-4hg8-92x6-h2f3

CVSS v3.1

Source Entity [email protected]

Severity HIGH

7.5

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-26319 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

February 20, 2026 MODIFIED

Vulnerability data updated via NVD.

February 20, 2026 MODIFIED

Vulnerability data updated via NVD.

February 20, 2026 MODIFIED

Vulnerability data updated via NVD.

February 19, 2026 MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


                                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected Stack

No specific products linked.