CVE-2026-42901

Critical

Description

Origin validation error in Microsoft Entra ID allows an unauthorized attacker to elevate privileges over a network.

SeverityCritical
CVSS10.0
Exploit probability—
ProductMicrosoft Entra Id
PublishedMay 22, 2026
First seenMay 22, 2026
Weakness typeCWE-346CWE-346

How to fix

Affected products

ProductAffected versionsFixed in
microsoft entra_idNo range specified—

Check your version

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