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CVE-2026-26118

Azure MCP Server Tools Elevation of Privilege Vulnerability

Published: Mar 10, 2026Updated: Mar 13, 2026 Sources: CVE List NVD GHSA BDUCWE-918
NVD MITRE
8.8CVSSHIGH
EPSS Score
1.0%
Top 43.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-918

Affected Products

Azure MCP Server ToolsMicrosoft Corp
On-prem
Operating Systems / windows
azure mcp servermicrosoft
On-prem
Operating Systems / windows
Azure.McpNuGetOSS Libraries
@azure/mcpnpmOSS Libraries
msmcp-azurePyPIOSS Libraries
microsoft corpcommercialUSOperating Systemsaka microsoft corporation
microsoftcommercialUSOperating Systems
nugetpackage-ecosystemOSS Libraries
npmpackage-ecosystemOSS Libraries
pypipackage-ecosystemOSS Libraries
and 5 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Command and Control
Initial Access
View detailed technique mapping

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26118
msrc.microsoft.com
https://nvd.nist.gov/vuln/detail/CVE-2026-26118
nvd.nist.gov
https://github.com/microsoft/mcp/commit/804ff60293206c4d8e832f772097238561bf2c34
github.com
and 3 more references View all →

Timeline

Published
Mar 10, 2026
Last Updated
Mar 13, 2026

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