CVE-2025-9611
JavaScript vulnerability analysis and mitigation

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.


SourceNVD

Related JavaScript vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2025-69264HIGH8.8
  • JavaScriptJavaScript
  • pnpm
NoYesJan 07, 2026
CVE-2025-69262HIGH7.5
  • JavaScriptJavaScript
  • pnpm
NoYesJan 07, 2026
CVE-2025-69263HIGH7.5
  • JavaScriptJavaScript
  • pnpm
NoYesJan 07, 2026
CVE-2026-22028HIGH7.2
  • JavaScriptJavaScript
  • preact
NoYesJan 07, 2026
CVE-2025-9611HIGH7.2
  • JavaScriptJavaScript
  • @playwright/mcp
NoYesJan 07, 2026

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