CVE-2026-32211Disclosure(microsoft / azure_web_apps)

LOWCVSS 7.5 · HIGH

Signal is active with 2 mentions in latest observed window

Immediate actions

Patch microsoft azure_web_apps systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

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

microsoft CVEs Back to dashboard

0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32211

Weakness type (CWE)

CWE-306

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

azure_web_apps

Threat summary

Patch or workaround signal is available
15 mentions across 7 observed days
Momentum state: stable

What's happening

Patch or workaround mentioned in 2 signals
Technical details provided in 11 signals
Disclosure: 12 classified signals
General: 2 classified signals
Peaked 6d ago at 6 mentions (2026-04-03); latest day: 2
15 total mentions across 7 days

Affected systems

Vendors

microsoft

Products

azure_web_apps

1 version affected across 1 product

Deep dive

Activity timeline15 mentions / 7d

Signal classification3 categories

Disclosure

1280.0%

General

213.3%

Patch

16.7%

Referenced assets12 URLs

By indicator

Classification over time

Date	Total	Labels

2026-04-03	6	Disclosure6
2026-04-05	1	Disclosure1
2026-04-06	2	Disclosure2
2026-04-07	2	General1Patch1
2026-04-08	1	Disclosure1
2026-04-13	1	Disclosure1
2026-04-21	2	Disclosure1General1

Full discourse15 posts

George Bevis@GeorgeBevis180d
Disclosure
🔥 TOP NEWS: → Microsoft disclosed CVE-2026-32211 in Azure MCP Server 🔐 CVSS 9.1. No authentication layer. Connects agents to Azure DevOps repos, pipelines, and credentials. → Anthropic removed OpenClaw and all third-party harnesses from Claude subscriptions 🚫 Agent workflows too costly to sustain under flat pricing → OpenAI completed pretraining on GPT-5.5, codenamed Spud ⚡ Greg Brockman: "two years of research, massive qualitative leap" → CrowdStrike's 2026 Threat Detection Report flagged MCP servers and AI CLIs as a new enterprise attack surface 🛡️ https://www.sentinelone.com/vulnerability-database/cve-2026-32211/
Post summary
The notice announces Microsoft’s disclosure of CVE‑2026‑32211 in Azure MCP Server, highlighting its high CVSS score (9.1) and lack of authentication, but offers no exploitation evidence, PoC, or patch information.
20000133
2.3K followersView on X
NY-squared AI@NYsquaredAI184d
Disclosure
BREAKING: Microsoft April patches include 2 critical AI platform CVEs CVE-2026-32213: Azure AI Foundry (CVSS 10) CVE-2026-32211: Azure MCP Server (CVSS 9.1) CVSS 10 = full privilege escalation, no auth CVSS 9.1 = data leak, no auth needed #Cybersecurity #Azure
Post summary
Microsoft's April patch release announces two new critical Azure AI platform CVEs (CVE-2026-32213 and CVE-2026-32211) with high CVSS scores, highlighting privilege escalation and data leakage risks without authentication requirements.
1001093
29 followersView on X
浅野昌和@masakz5187d
Disclosure
4/3にMicrosoftがAzure MCP Serverに重大な認証欠陥（CVE-2026-32211、CVSS 9.1）を開示。MCPとしては認証機能はオプション扱い。ただ、外部に公開される可能性を考えると（用途を広げていくと公開が必要なケースが増えていくはず）、何らかの認証機構の組み込みは必須。 https://dev.to/michael_onyekwere/cve-2026-32211-what-the-azure-mcp-server-flaw-means-for-your-agent-security-14db
Post summary
Microsoft disclosed a critical authentication flaw (CVE‑2026‑32211) in Azure MCP Server, noting optional authentication but suggesting embedding an authentication mechanism for external exposure.
00020130
428 followersView on X
Sattyam Jain@Sattyamjjain172d
Disclosure
CVE-2026-32211 (Azure MCP, CVSS 8.6): Microsoft's reference server echoed bearer tokens in WWW-Authenticate headers on 401s. CVE-2026-20205 (Splunk MCP): cleartext HEC tokens in splunkd.log. Both = log-layer leaks.
Post summary
Both CVE-2026-32211 and CVE-2026-20205 expose log‑layer leaks by revealing bearer or HEC tokens in logs and headers, indicating a disclosure of new information‑exposure vulnerabilities.
1000056
66 followersView on X
NCIIPC India@NCIIPC186d
Patch
#Microsoft released Security Update to address an Information Disclosure Vulnerability in Microsoft Azure MCP Server. #CVE-2026-32211 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32211
Post summary
Microsoft released a security update addressing CVE‑2026‑32211, a reported information disclosure vulnerability in Azure MCP Server; no exploit or PoC is referenced in the message.
00001190
8.4K followersView on X
Firmis Labs@FirmisLabs186d
General
CVE-2026-32211 · NIST 9.1/10 https://nvd.nist.gov/vuln/detail/CVE-2026-32211
Post summary
The post merely lists CVE‑2026‑32211 with a high CVSS score and links to the NVD entry, offering no additional exploitation or mitigation details.
1000034
1 followersView on X
AGENT TRESOR@AgentTresor188d
Disclosure
OpenAI just added more write actions + Codex plugins bundling MCP. Microsoft just disclosed CVE-2026-32211 on Azure MCP. Meanwhile AIXBT did ~5.5M 24h volume on a ~9.3M cap. Take: agent infra is investable, but security is the spread. #AIAgents #Crypto
Post summary
Microsoft announced the disclosure of CVE‑2026‑32211 impacting Azure MCP, but no further exploitation or remediation details are provided.
0001071
262 followersView on X
Sattyam Jain@Sattyamjjain172d
General
Primary sources: • Vercel KB: http://vercel.com/kb/bulletin/vercel-april-2026-security-incident • Trend Micro post-mortem • OX Security: http://ox.security/blog/mother-of-all-ai-supply-chains-2026-04-20 • CVE-2026-32211 (Azure MCP) • CVE-2026-20205 (Splunk MCP)
Post summary
The text references several security sources and two CVEs but lacks explicit details on exploits, patches, or technical specifics, making it a general mention rather than a focused disclosure or exploit announcement.
0000044
66 followersView on X
Aakash Rahsi@rahsi_aaka186d
Disclosure
CVE-2026-32211 | Azure MCP Server Information Disclosure Vulnerability https://www.aakashrahsi.online/post/cve-2026-32211 https://t.co/GuRPzZLjGz
Post summary
The post announces CVE‑2026‑32211 as an information‑disclosure flaw in Azure MCP Server, linked to a detailed write‑up.
0000036
1 followersView on X
CVE@CVEnew189d
Disclosure
CVE-2026-32211 Missing authentication for critical function in Azure MCP Server allows an unauthorized attacker to disclose information over a network. https://www.cve.org/CVERecord?id=CVE-2026-32211
Post summary
The text announces a newly disclosed vulnerability (CVE‑2026‑32211) in Azure MCP Server that permits information disclosure due to missing authentication.
00000126
56.9K followersView on X
CVEarity@CVEarity190d
Disclosure
⚡ New CVE Alert: CVE-2026-32211 📊 Severity: 9.1 🚨 Risk Level: Critical 🧩 Affects: Multiple / Unspecified Products Reference: https://nvd.nist.gov/vuln/detail/CVE-2026-32211 #CVE-2026-32211 #CVE #Critical #CyberSecurity #InfoSec https://t.co/ud3D43OhZR
Post summary
The tweet announces CVE‑2026‑32211 as a critical vulnerability with a 9.1 severity score but provides no technical details, PoC, exploit code, or patch information.
0000041
123 followersView on X
CyberDudeBivash® | Global Cybersecurity Company@cyberbivash190d
Disclosure
🚨 CYBERDUDEBIVASH SENTINEL APEX ALERT 🚨 Threat: CVE-2026-32211 - Azure MCP Server Information Disclosure Vulnerability Intel Report: https://ift.tt/HNjtpz1
Post summary
The post announces the Azure MCP Server Information Disclosure vulnerability CVE‑2026‑32211 and points to an Intel Report, but offers no proof of concept, exploit code, active exploitation claims, or patch details.
00000226
282 followersView on X
The Hacker Wire@TheHackerWire190d
Disclosure
🔴 CVE-2026-32211 - Critical Missing authentication for critical function in Azure MCP Server allows an unauthorized attacker to disclose information over a network. https://www.thehackerwire.com/vulnerability/CVE-2026-32211/ https://t.co/1MY2ghoDKc
Post summary
The tweet announces a critical CVE (CVE-2026-32211) affecting Azure MCP Server, highlighting missing authentication that enables information disclosure, without any mention of PoC, exploit, active attacks, or patches.
0000055
160 followersView on X
dbugs@ptdbugs190d
Disclosure
Azure MCP Server Information Disclosure Vulnerability CVE: CVE-2026-32211 PT ID: PT-2026-29904 Vendor: Microsoft Product: Azure Web Apps CVSS: 9.1 Credits: n/a Description: Missing authentication for critical function in Azure MCP Server allows an unauthorized attacker to disclose information over a network. References: • https://dbugs.ptsecurity.com/vulnerability/CVE-2026-32211 • https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32211 #dbugs_vuln
Post summary
A newly disclosed Azure Web Apps vulnerability (CVE-2026-32211) allows information disclosure due to missing authentication. No PoC, exploit, or patch is mentioned in the text.
00000116
768 followersView on X
CVEFind.com@CveFindCom190d
Disclosure
[CVE-2026-32211: CRITICAL] Missing authentication for critical function in Azure MCP Server allows an unauthorized attacker to disclose information over a network.#cve,CVE-2026-32211,#cybersecurity https://cvefind.com/CVE-2026-32211
Post summary
The post announces CVE-2026-32211, describing missing authentication in Azure MCP Server that could lead to information disclosure, but does not provide PoC, exploit code, or evidence of active exploitation.
0000047
610 followersView on X

CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	microsoft	azure_web_apps	-	-	-

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What researchers are saying

CVE-2026-32211

George Bevis[verified]@GeorgeBevisDisclosure

The notice announces Microsoft’s disclosure of CVE‑2026‑32211 in Azure MCP Server, highlighting its high CVSS score (9.1) and lack of authentication, but offers no exploitation evidence, PoC, or patch information.

NY-squared AI[verified]@NYsquaredAIDisclosure

Microsoft's April patch release announces two new critical Azure AI platform CVEs (CVE-2026-32213 and CVE-2026-32211) with high CVSS scores, highlighting privilege escalation and data leakage risks without authentication requirements.

Firmis Labs[verified]@FirmisLabsGeneral

The post merely lists CVE‑2026‑32211 with a high CVSS score and links to the NVD entry, offering no additional exploitation or mitigation details.

AGENT TRESOR[verified]@AgentTresorDisclosure

Microsoft announced the disclosure of CVE‑2026‑32211 impacting Azure MCP, but no further exploitation or remediation details are provided.

dbugs[verified]@ptdbugsDisclosure

A newly disclosed Azure Web Apps vulnerability (CVE-2026-32211) allows information disclosure due to missing authentication. No PoC, exploit, or patch is mentioned in the text.

浅野昌和@masakz5Disclosure

Microsoft disclosed a critical authentication flaw (CVE‑2026‑32211) in Azure MCP Server, noting optional authentication but suggesting embedding an authentication mechanism for external exposure.

Sattyam Jain@SattyamjjainDisclosure

Both CVE-2026-32211 and CVE-2026-20205 expose log‑layer leaks by revealing bearer or HEC tokens in logs and headers, indicating a disclosure of new information‑exposure vulnerabilities.

NCIIPC India@NCIIPCPatch

Microsoft released a security update addressing CVE‑2026‑32211, a reported information disclosure vulnerability in Azure MCP Server; no exploit or PoC is referenced in the message.