cvedb.io
CVE-2026-53840
HIGH · CVSS 7.1
EPSS exploitation probability: 0%
Published 2026-06-16T19:17:00.863 · Last modified 2026-06-17T20:31:29.327

Summary

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

openclaw — openclaw

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.