External Control of File Name or Path in Microsoft SharePoint Server - CVE-2026-54108
Published: July 17, 2026
Vulnerability identifier: #VU138284
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-2026-54108
CWE-ID: CWE-73
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose sensitive information.
The vulnerability exists due to external control of file name or path in Microsoft Office SharePoint when handling network requests. A remote user can manipulate a file name or path to disclose sensitive information.
Affected software
Microsoft SharePoint Server
How to mitigate CVE-2026-54108
Install security update from vendor's website.
Microsoft SharePoint Server - addressed in versions 16.0.5561.1001, 16.0.10417.20175, 16.0.19725.20434