CVE-2026-35605 Details
Description
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.
A path-based access rule bypass vulnerability has been identified in File Browser versions through 2.62.2. The issue arises in the Matches() function within rules/rules.go, which uses strings.HasPrefix() for path matching without a trailing directory separator. This flaw allows a rule for '/uploads' to inadvertently match '/uploads_backup/', granting access to unintended directories. The vulnerability is rooted in the lack of proper directory boundary enforcement when applying access rules, particularly for non-regex path matches.
Users can upgrade to File Browser version 2.63.1 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 9, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/filebrowser/filebrowser/pull/5889 | [email protected] | Patch |
| https://github.com/filebrowser/filebrowser/security/advisories/GHSA-5q48-q4fm-g3m6 | [email protected] | ExploitVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-22 | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| filebrowser filebrowser | < 2.63.1 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 16, 2026 | Initial Analysis | [email protected] |
| Apr 9, 2026 | CVE Modified | CISA-ADP |
| Apr 7, 2026 | New CVE Received | [email protected] |