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 products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OpenClaw | OpenClaw | < 2026.4.15 | 2026.4.15 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | openclaw | < 2026.4.15 | 2026.4.15 | GHSA-xh72-v6v9-mwhc |
Advisories 1
- WID-SEC-2026-1161 OpenClaw: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 6, 2026
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