CVE-2026-32211
Received Received - Intake
Missing Authentication in Azure MCP Server Enables Information Disclosure

Publication date: 2026-04-03

Last updated on: 2026-04-06

Assigner: Microsoft Corporation

Description
Missing authentication for critical function in Azure MCP Server allows an unauthorized attacker to disclose information over a network.
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Meta Information
Published
2026-04-03
Last Modified
2026-04-06
Generated
2026-06-16
AI Q&A
2026-04-03
EPSS Evaluated
2026-06-15
NVD
CVE-2026-32211
EUVD
EUVD-2026-18560
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
microsoft azure_web_apps *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-306 The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.
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Compliance Impact

This vulnerability allows unauthorized attackers to disclose information over a network due to missing authentication for a critical function in Azure MCP Server.

Such information disclosure can potentially lead to non-compliance with data protection standards and regulations like GDPR and HIPAA, which require safeguarding sensitive information against unauthorized access.

Impact Analysis

The vulnerability can lead to unauthorized disclosure of sensitive information, which can compromise confidentiality and potentially lead to further security breaches. Given its critical severity with a CVSS score of 9.1, it poses a high risk to affected systems.

Executive Summary

This vulnerability involves a missing authentication mechanism for a critical function in the Azure MCP Server. Because of this, an unauthorized attacker can access and disclose sensitive information over a network without needing proper credentials.

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