Incorrect authorization in Microsoft SharePoint Server - CVE-2026-102865
Published: October 13, 2026
Vulnerability identifier: #VU154299
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-102865
CWE-ID: CWE-863
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose file content.
The vulnerability exists due to incorrect authorization in Microsoft Office SharePoint when accessing files over a network. A remote user can exploit incorrect authorization to disclose file content.
The Preview Pane is not an attack vector for this vulnerability.
Affected software
Microsoft SharePoint Server
How to mitigate CVE-2026-102865
Install security update from vendor's website.
Microsoft SharePoint Server - update to 16.0.20326.20190