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Vulnerability DatabaseCVE-2025-9611

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.

Source: NVD

Related JavaScript vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2026-23947CRITICAL9.3
  • JavaScriptJavaScript
  • @orval/core
NoYesJan 20, 2026
CVE-2026-23950HIGH8.8
  • JavaScriptJavaScript
  • grafana-graphite
NoYesJan 20, 2026
CVE-2026-22037HIGH8.4
  • JavaScriptJavaScript
  • @fastify/express
NoYesJan 19, 2026
CVE-2026-23522LOW3.7
  • JavaScriptJavaScript
  • @lobehub/chat
NoNoJan 19, 2026
CVE-2025-66803LOW1.7
  • JavaScriptJavaScript
  • @hotwired/turbo
NoYesJan 20, 2026

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