A AegiFlow
HIGHCVSS 7.2

CVE-2025-9611

CVE-2025-9611 updated by NVD

Modified
2026-10-10
Sources
nvd

Summary

Microsoft Playwright MCP Server versions prior to 0.0.40 fails to validate the Origin header on incoming connections. This allows an attacker to perform a DNS rebinding attack via a victim’s web browser and send unauthorized requests to a locally running MCP server, resulting in unintended invocation of MCP tool endpoints.

References

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

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