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9.9
OpenClaw before 2026.4.15: Feishu Webhook and Card-Action Validation Bypass
GHSA-cjg8-85gj-v9q2
Summary
OpenClaw versions before 2026.4.15 have a security flaw that lets attackers send requests without being authorized. This could allow them to execute arbitrary commands on your system. To stay secure, update to OpenClaw 2026.4.15 or later.
What to do
- Update GitHub Actions openclaw to version 2026.4.15.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| npm | GitHub Actions | openclaw |
< 2026.4.15 Fix: upgrade to 2026.4.15
|
Original title
Duplicate Advisory: OpenClaw: Feishu webhook and card-action validation now fail closed
Original description
### Duplicate Advisory
This advisory has been withdrawn because it is a duplicate of GHSA-xh72-v6v9-mwhc. This link is maintained to preserve external references.
### Original 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.
This advisory has been withdrawn because it is a duplicate of GHSA-xh72-v6v9-mwhc. This link is maintained to preserve external references.
### Original 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.
osv CVSS3.1
9.8
osv CVSS4.0
9.9
Vulnerability type
CWE-1188
- https://github.com/openclaw/openclaw/security/advisories/GHSA-xh72-v6v9-mwhc URL
- https://nvd.nist.gov/vuln/detail/CVE-2026-44109 Vendor Advisory
- https://github.com/openclaw/openclaw/commit/c8003f1b33ed2924be5f62131bd28742c5a4... URL
- https://www.vulncheck.com/advisories/openclaw-authentication-bypass-in-feishu-we... URL
Published: 6 May 2026 · Updated: 11 May 2026 · First seen: 11 May 2026