CVE-2026-26138 Microsoft Purview Elevation of Privilege Vulnerability
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-2026-26138?
CVE-2026-26138 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-2026-26138?
It affects 1 product.
Products include Microsoft Purview.
How do I fix CVE-2026-26138?
No fix has been published for CVE-2026-26138 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-2026-26138 being exploited?
There is no known exploitation of CVE-2026-26138 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Purview
Sources
Also known as GHSA-2h78-gc9r-r8wj.