CVE-2026-26150 Microsoft Purview eDiscovery Elevation of Privilege Vulnerability

High 8.6 Published Updated

An unauthorized attacker can exploit SSRF in Microsoft Purview eDiscovery 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-2026-26150?

CVE-2026-26150 is a high-severity server-side request forgery vulnerability in Microsoft Purview eDiscovery, published on 23 Apr 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-2026-26150?

It affects 1 product.

Products include Microsoft Purview Ediscovery.

How do I fix CVE-2026-26150?

No fix has been published for CVE-2026-26150 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-2026-26150 being exploited?

There is no known exploitation of CVE-2026-26150 in the wild and no public exploit code.

Sources

Also known as GHSA-cmwj-wrw7-w4jx.

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