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Microsoft Security Response CenterCVE-2026-109492

Microsoft MCP Gateway Elevation of Privilege Vulnerability

High 1 CVE Published Nov 10, 2026 at 8:00 AM UTC

Summary

Authorization bypass through user-controlled key in Microsoft MCP Gateway allows an authorized attacker to elevate privileges over a network.

Products covered

  • mcp-gateway

Remediation

Release Notes

Vendor-listed fixes

  • 1.0.0

CVEs in this advisory 1

Updates

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.