CVE-2026-26118

Azure MCP Server Tools Elevation of Privilege Vulnerability

State: Published
Severity: 8.8 High
Published: Mar 10, 2026
Updated: Jun 19, 2026
Reserved: Feb 11, 2026

Description

Server-side request forgery (ssrf) in Azure MCP Server allows an authorized attacker to elevate privileges over a network.

Scores

CVSS	Score	Vector	Source
3.1	8.8 High	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	microsoft

Weaknesses

CWE-918 Server-Side Request Forgery (SSRF)

Affected Products

Product	Versions
Azure MCP Server Tools 1.0.0 (npm)Microsoft	1.0.0 to before 1.0.2Affected
Azure MCP Server Tools 1.0.0 (NuGet)Microsoft	1.0.0 to before 1.0.2Affected
Azure MCP Server Tools 2.0.0 (npm)Microsoft	2.0.0-beta.1 to before 2.0.0-beta.17Affected
Azure MCP Server Tools 2.0.0 (NuGet)Microsoft	2.0.0-beta.1 to before 2.0.0-beta.17Affected
Azure MCP Server Tools 2.0.0 (PyPi)Microsoft	2.0.0-beta.1 to before 2.0.0-beta.17Affected

References

Azure MCP Server Tools Elevation of Privilege Vulnerabilityvendor-advisorypatch

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