VULNERABILITY INTELLIGENCE
CVE-2025-9611
EPSS probability1.22%
CISA KEVNot currently listed
Published2026-01-07
Last modified2026-10-08
Description
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.
Weakness classification
- disclosure@vulncheck.com: CWE-749