# CVE-2026-32211: Azure MCP Server Information Disclosure Vulnerability

> An unauthorized attacker can disclose sensitive information from Azure MCP Server due to missing authentication on a critical function.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 2 Apr 2026
- **Updated:** 15 Oct 2026
- **Also known as:** GHSA-5w7p-v6h9-q8c5

## What is CVE-2026-32211?

CVE-2026-32211 is a critical missing authorization vulnerability in Microsoft Azure Web Apps, published on 2 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

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

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2026-32211?

It affects 1 product.


Products: Microsoft Azure Web Apps.

## How do I fix CVE-2026-32211?

No fix has been published for CVE-2026-32211 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-32211 being exploited?

There is no known exploitation of CVE-2026-32211 in the wild and no public exploit code.

## Other vulnerabilities in Microsoft Azure Web Apps

- [CVE-2026-65816](https://insights.sbomify.com/CVE-2026-65816/): Azure Arc Elevation of Privilege Vulnerability (critical 10.0)
- [CVE-2024-38194](https://insights.sbomify.com/CVE-2024-38194/): Azure Web Apps Elevation of Privilege Vulnerability (high 8.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-32211 and fix it if it is affected.

What it is: CVE-2026-32211 is a critical missing authorization vulnerability in Microsoft Azure Web Apps, published on 2 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-32211 in the wild and no public exploit code.

Affected product: Microsoft Azure Web Apps. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-32211/ (Markdown: https://insights.sbomify.com/CVE-2026-32211/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-32211
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-32211
- OSV: https://osv.dev/vulnerability/CVE-2026-32211

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-32211/
Summaries are generated and may contain mistakes; the official description above is the record.