Vulnerability · Published May 6, 2026 · Assigned by VulnCheck

CVE-2026-44109OpenClaw < 2026.4.15 - Authentication Bypass in Feishu Webhook and Card-Action Validation

Critical 9.8

In plain English

A critical-severity security flaw in OpenClaw from OpenClaw. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.8Critical

Exploit odds (30 days)0.7%top 46.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

OpenClaw before 2026.4.15 contains an authentication bypass vulnerability in Feishu webhook and card-action validation that allows unauthenticated requests to reach command dispatch. Missing encryptKey configuration and blank callback tokens fail open instead of rejecting requests, enabling attackers to bypass signature verification and replay protection to execute arbitrary commands.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	openclaw	2026.4.15	GHSA-xh72-v6v9-mwhc

Affected products (as reported)

Vendor	Product	Versions
OpenClaw	OpenClaw	0 – before 2026.4.15

Weakness: CWE-1188 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

GitHub Security Advisory (GHSA-xh72-v6v9-mwhc) vendor-advisory
Patch Commit patch
VulnCheck Advisory: OpenClaw < 2026.4.15 - Authentication Bypass in Feishu Webhook and Card-Action Validation third-party-advisory