Description
Authorization bypass through user-controlled key in Microsoft MCP Gateway allows an authorized attacker to elevate privileges over a network.
Published: 2026-11-10
Score: 8.8 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 10 Nov 2026 18:30:00 +0000

Type Values Removed Values Added
Description Authorization bypass through user-controlled key in Microsoft MCP Gateway allows an authorized attacker to elevate privileges over a network.
Title Microsoft MCP Gateway Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft mcp Gateway
Weaknesses CWE-639
CPEs cpe:2.3:a:microsoft:mcp_gateway:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft mcp Gateway
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}

Subscriptions

Microsoft Mcp Gateway
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-11-10T18:15:34.812Z

Reserved: 2026-10-12T17:12:29.211Z

Link: CVE-2026-109492

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses