Path Traversal in Filebrowser
CVE-2026-55668
File Browser provides a web file managing interface. Prior to 2.63.16, ScopedFs validates the nearest existing ancestor of a dangling symlink as in scope and then follows the symlink during file creation, allowing an authenticated user with Create and Modify permissions to create attacker-controlled files outside the user's scope. This issue is fixed in version 2.63.16.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.003 (19.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N.
Affected products
- Filebrowser — versions < 2.63.16
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-55668?
- CVE-2026-55668 is a medium-severity vulnerability in Filebrowser, classified under Path Traversal. CVSS score: 6.3/10. Published 2026-07-08.
- How severe is CVE-2026-55668?
- Medium severity. CVSS v3 base score is 6.3 out of 10.