Description
OpenClaw before 2026.4.20 contains a hook session-key bypass vulnerability that allows attackers to circumvent the hooks.allowRequestSessionKey opt-in restriction. Attackers can render externally influenced session keys through templated hook mappings to bypass webhook routing isolation controls.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OpenClaw | OpenClaw | < 2026.4.20 | 2026.4.20 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | openclaw | < 2026.4.20 | 2026.4.20 | GHSA-2xcp-x87w-q377 |
Advisories 1
- WID-SEC-2026-1227 OpenClaw: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 11, 2026
References
- GitHub Security Advisory (GHSA-2xcp-x87w-q377) vendor-advisory
- Patch Commit patch
- VulnCheck Advisory: OpenClaw < 2026.4.20 - Hook Session-Key Bypass via Template Mapping third-party-advisory