CVE-2026-69851: CWE-918: Server-Side Request Forgery (SSRF) in Microsoft Microsoft Entra

This vulnerability, tracked as CVE-2026-69851 and categorized under CWE-918 (Server-Side Request Forgery), affects Microsoft Entra, specifically Azure Active Directory. An authorized attacker can exploit SSRF to perform unauthorized network requests, leading to privilege escalation. The CVSS 3.1 base score is 9.9 with vector AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H, reflecting network attack vector, low attack complexity, required privileges, no user interaction, scope change, and high impact on confidentiality, integrity, and availability. Microsoft manages remediation for this cloud-hosted service and has released an official fix as per their security update guide.

Successful exploitation allows an authorized attacker to elevate privileges within the network, potentially compromising confidentiality, integrity, and availability of affected systems and data in Microsoft Entra (Azure Active Directory). This could lead to significant security breaches in environments relying on this service.

Microsoft has released an official fix for this vulnerability. Since Microsoft Entra is a cloud service, Microsoft manages the remediation server-side. Users should ensure their environments are updated according to Microsoft's guidance in the official advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69851. No additional user action beyond applying the official fix is required.