Description
OpenClaw before 2026.4.22 derives loopback MCP owner context from spoofable server-issued bearer tokens in request headers. Non-owner loopback clients can present themselves as owner to bypass owner-gated operations by manipulating the sender-owner header metadata.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OpenClaw | OpenClaw | < 2026.4.22 | 2026.4.22 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | openclaw | < 2026.4.22 | 2026.4.22 | GHSA-r6xh-pqhr-v4xh |
Advisories 1
- WID-SEC-2026-1253 OpenClaw: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 11, 2026
References
- GitHub Security Advisory (GHSA-r6xh-pqhr-v4xh) vendor-advisory
- Patch Commit patch
- VulnCheck Advisory: OpenClaw < 2026.4.22 - Owner Context Spoofing via Bearer Token Header third-party-advisory