Server-Side Request Forgery (SSRF) in Microsoft SharePoint Server Subscription Edition - CVE-2026-70326
Published: August 11, 2026
Vulnerability identifier: #VU141487
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-70326
CWE-ID: CWE-918
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The disclosed vulnerability allows a remote attacker to perform SSRF attacks.
The vulnerability exists due to insufficient validation of user-supplied input in Microsoft SharePoint Server. A remote user can send a specially crafted HTTP request and trick the application to initiate requests to arbitrary systems.
Successful exploitation of this vulnerability may allow a remote attacker gain eelvated privileges on th target system.
Affected software
Microsoft SharePoint Server Subscription Edition
How to mitigate CVE-2026-70326
Install updates from vendor's website.
Microsoft SharePoint Server Subscription Edition - update to 16.0.19725.20522