# CVE-2026-21512: Azure DevOps Server Cross-Site Scripting Vulnerability

> An authorized attacker can exploit a server-side request forgery flaw in Azure DevOps Server to perform network spoofing.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 Feb 2026
- **Updated:** 19 Aug 2026
- **Also known as:** GHSA-532f-36vx-gpxx

## What is CVE-2026-21512?

CVE-2026-21512 is a medium-severity server-side request forgery vulnerability in Microsoft Azure DevOps Server 2022, published on 10 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Server-side request forgery (ssrf) in Azure DevOps Server allows an authorized attacker to perform spoofing over a network.

Weakness: CWE-918 (Server-Side Request Forgery)

## Which versions are affected by CVE-2026-21512?

It affects 1 product.


Products: Microsoft Azure Devops Server.

## How do I fix CVE-2026-21512?

No fix has been published for CVE-2026-21512 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-21512 being exploited?

There is no known exploitation of CVE-2026-21512 in the wild and no public exploit code.

## Other vulnerabilities in Microsoft Azure DevOps Server 2022

- [CVE-2019-1306](https://insights.sbomify.com/CVE-2019-1306/): Code injection in Azure DevOps Server (critical 9.8)
- [CVE-2019-1072](https://insights.sbomify.com/CVE-2019-1072/): Code injection in Azure DevOps Server (critical 9.8)
- [CVE-2023-33136](https://insights.sbomify.com/CVE-2023-33136/): Azure DevOps Server Remote Code Execution Vulnerability (high 8.8)
- [CVE-2024-35266](https://insights.sbomify.com/CVE-2024-35266/): Azure DevOps Server Spoofing Vulnerability (high 7.6)
- [CVE-2024-35267](https://insights.sbomify.com/CVE-2024-35267/): Azure DevOps Server Spoofing Vulnerability (high 7.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-21512 and fix it if it is affected.

What it is: CVE-2026-21512 is a medium-severity server-side request forgery vulnerability in Microsoft Azure DevOps Server 2022, published on 10 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-21512 in the wild and no public exploit code.

Affected product: Microsoft Azure DevOps Server 2022. 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-2026-21512/ (Markdown: https://insights.sbomify.com/CVE-2026-21512/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-21512
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-21512
- OSV: https://osv.dev/vulnerability/CVE-2026-21512

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-21512/
Summaries are generated and may contain mistakes; the official description above is the record.