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

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

Which versions are affected by CVE-2026-21512?

It affects 1 product.

Products include 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.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

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 Code injection in Azure DevOps Server Critical 9.8
• CVE-2019-1072 Code injection in Azure DevOps Server Critical 9.8
• CVE-2023-33136 Azure DevOps Server Remote Code Execution Vulnerability High 8.8
• CVE-2024-35266 Azure DevOps Server Spoofing Vulnerability High 7.6
• CVE-2024-35267 Azure DevOps Server Spoofing Vulnerability High 7.6

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-532f-36vx-gpxx.