Description
OpenClaw before 2026.3.22 contains an improper authentication verification vulnerability in Google Chat app-url webhook handling that accepts add-on principals outside intended deployment bindings. Attackers can bypass webhook authentication by providing non-deployment add-on principals to execute unauthorized actions through the Google Chat integration.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OpenClaw | OpenClaw | < 2026.3.22 | 2026.3.22 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | openclaw | < 2026.3.22 | 2026.3.22 | GHSA-mp66-rf4f-mhh8 |
Advisories 1
- WID-SEC-2026-0856 OpenClaw: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 12, 2026
References
- GitHub Security Advisory (GHSA-mp66-rf4f-mhh8) vendor-advisory
- Patch Commit #1 patch
- Patch Commit #2 patch
- VulnCheck Advisory: OpenClaw < 2026.3.22 - Improper Authentication Verification in Google Chat Webhook third-party-advisory