CVE-2026-25890

File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename and edit files. Prior to 2.57.1, an authenticated user can bypass the application's "Disallow" file path rules by modifying the request URL. By adding multiple slashes (e.g., //private/) to the path, the authorization check fails to match the rule, while the underlying filesystem resolves the path correctly, granting unauthorized access to restricted files. This vulnerability is fixed in 2.57.1.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/filebrowser/filebrowser/commit/489af403a19057f6b6b4b1dc0e48cbb26a202ef9	Patch
https://github.com/filebrowser/filebrowser/releases/tag/v2.57.1	Product Release Notes
https://github.com/filebrowser/filebrowser/security/advisories/GHSA-4mh3-h929-w968	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:filebrowser:filebrowser:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-02-09 22:16

Updated : 2026-02-20 20:31

NVD link : CVE-2026-25890

Mitre link : CVE-2026-25890

CVE.ORG link : CVE-2026-25890

JSON object : View

Products Affected

filebrowser

filebrowser

CWE

CWE-706

Use of Incorrectly-Resolved Name or Reference

CWE-863

Incorrect Authorization

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