Path Traversal in Filebrowser
CVE-2026-35605
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.004 (36.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.001
Affected products
- Filebrowser — versions < 2.63.1
Weakness classification (CWE)
References
- github.com/filebrowser/filebrowser/security/advisories/GHSA-5q48-q4fm-g3m6 (Exploit, Vendor Advisory)
- github.com/filebrowser/filebrowser/pull/5889 (Patch)
Frequently asked questions
- What is CVE-2026-35605?
- CVE-2026-35605 is a high-severity vulnerability in Filebrowser, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-04-07.
- How severe is CVE-2026-35605?
- High severity. CVSS v3 base score is 7.5 out of 10.