CVE-2026-32211

9.1

CRITICAL CVSS 3.1

Azure MCP Server Information Disclosure Vulnerability

Overview

Description

Missing authentication for critical function in Azure MCP Server allows an unauthorized attacker to disclose information over a network.

Details

INFO

Published Date :

April 3, 2026, 12:16 a.m.

Last Modified :

April 6, 2026, 6:08 p.m.

Remotely Exploit :

No

Source :

[email protected]

Impact

Affected Products

The following products are affected by CVE-2026-32211 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID	Vendor	Product	Action
1	Microsoft	azure_web_apps

: Total Affected Vendor : 1 | Products : 1

Scoring

CVSS Scores

The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.

Version	Severity	Source
CVSS 3.1	CRITICAL	f38d906d-7342-40ea-92c1-6c4a2c6478c8
CVSS 3.1	CRITICAL	[email protected]
CVSS 3.1	HIGH	[email protected]

Public PoC/Exploit Available at Github

CVE-2026-32211 has a 5 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-32211.

URL	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32211	Vendor Advisory

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-32211 is associated with the following CWEs:

CWE-306: Missing Authentication for Critical Function

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-32211 weaknesses.

CAPEC-12: Choosing Message Identifier Choosing Message Identifier CAPEC-36: Using Unpublished Interfaces or Functionality Using Unpublished Interfaces or Functionality CAPEC-62: Cross Site Request Forgery Cross Site Request Forgery CAPEC-166: Force the System to Reset Values Force the System to Reset Values CAPEC-216: Communication Channel Manipulation Communication Channel Manipulation

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

piiiico/piiiico

piiiico — trust infrastructure for the agentic economy

Updated: 1 week, 2 days ago

0 stars 0 fork 0 watcher

Born at : April 20, 2026, 5:42 p.m. This repo has been linked 1 different CVEs too.

webpro255/awesome-ai-agent-attacks

A curated timeline of real AI agent security incidents, breaches, and vulnerabilities (2024-2026). Every entry sourced and dated.

ai-agent-security ai-agents ai-security awesome-list cybersecurity llm-security mcp-security prompt-injection supply-chain-security adversarial-attacks agent-security agentic-ai ai-attacks ai-safety cve incident-response owasp red-team security-research vulnerability

Updated: 1 week ago

7 stars 1 fork 1 watcher

Born at : April 7, 2026, 2:19 p.m. This repo has been linked 55 different CVEs too.

thc1006/shiftscope

Migration intelligence framework for cloud-native infrastructure API transitions

Makefile Python Dockerfile

Updated: 2 weeks, 6 days ago

6 stars 0 fork 0 watcher

Born at : April 5, 2026, 3:03 a.m. This repo has been linked 1 different CVEs too.

TMLVOD/spencerg

This reposityory will be used to store my public portfolio

PowerShell

Updated: 3 weeks, 4 days ago

0 stars 0 fork 0 watcher

Born at : March 21, 2026, 2:58 p.m. This repo has been linked 5 different CVEs too.

tejasprasad2008-afk/TraceTree

TraceTree - Runtime behavioral analysis tool that maps the process cascade of suspicious packages into a directed tree, catching supply chain attacks that install-time scanners miss.

Python Dockerfile Shell

Updated: 3 weeks ago

39 stars 4 fork 4 watcher

Born at : March 20, 2026, 9:24 p.m. This repo has been linked 1 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-32211 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-32211 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

Initial Analysis by [email protected]

Apr. 06, 2026

Action	Type	New Value
Added	CVSS V3.1	AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Added	CPE Configuration	OR cpe:2.3:a:microsoft:azure_web_apps:-:::::::
Added	Reference Type	Microsoft Corporation: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32211 Types: Vendor Advisory

New CVE Received by [email protected]

Apr. 03, 2026

Action	Type	New Value
Added	Tag	exclusively-hosted-service
Added	Description	Missing authentication for critical function in Azure MCP Server allows an unauthorized attacker to disclose information over a network.
Added	CVSS V3.1	AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Added	CWE	CWE-306
Added	Reference	https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32211

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.