CVE-2026-35605 MEDIUM

CVE-2026-35605: File Browser has an access rule bypass via HasPrefix without trailing separator in path matching

Vendor Filebrowser
Product filebrowser
Weakness CWE-22 · Path traversal
Published April 7, 2026
Last update April 9, 2026

CVSS base score

6.3/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.1, the Matches() function in rules/rules.go uses strings.HasPrefix() without a trailing directory separator when matching paths against access rules. A rule for /uploads also matches /uploads_backup/, granting or denying access to unintended directories. This vulnerability is fixed in 2.63.1.

Key dates

02Disclosure timeline

April 7, 2026 CVE published
April 9, 2026 Record updated