CVE-2026-26139 Microsoft Purview Elevation of Privilege Vulnerability

High 8.6 Published 19 Mar 2026 Updated 19 Jun 2026

An unauthorized attacker can exploit SSRF in Microsoft Purview to elevate privileges over the network.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-26139?

CVE-2026-26139 is a high-severity server-side request forgery vulnerability in Microsoft Purview, published on 19 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Server-side request forgery (ssrf) in Microsoft Purview allows an unauthorized attacker to elevate privileges over a network.

Weakness: CWE-918

Which versions are affected by CVE-2026-26139?

It affects 1 product.

Products include Microsoft Purview.

How do I fix CVE-2026-26139?

No fix has been published for CVE-2026-26139 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-2026-26139 being exploited?

There is no known exploitation of CVE-2026-26139 in the wild and no public exploit code.

Sources

Also known as GHSA-2cx9-68hw-c382.