Description
OpenClaw before 2026.5.12 contains an information disclosure vulnerability in streamable-http MCP servers that forwards operator-configured custom headers during cross-origin redirects. Attackers controlling or compromising an MCP endpoint can redirect requests to exfiltrate sensitive headers like API keys or tenant-routing credentials to attacker-controlled origins.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OpenClaw | OpenClaw | < 2026.5.12 | 2026.5.12 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | openclaw | < 2026.5.12 | 2026.5.12 | GHSA-rjxq-qqhf-8hwh |
Advisories 1
- WID-SEC-2026-1738 OpenClaw: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 16, 2026