CVE-2026-55668 PUBLISHED

File Browser: ScopedFs follows a dangling symlink on write, letting a scoped user create files outside their scope

Assigner: GitHub_M
Reserved: 17.06.2026 Published: 08.07.2026 Updated: 08.07.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N
CVSS Score: 6.3

Attack Vector	Network	Scope	Changed
Attack Complexity	High	Confidentiality Impact	None
Privileges Required	Low	Integrity Impact	High
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	filebrowser
Product	filebrowser
Versions	Version < 2.63.16 is affected

References

Problem Types

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') CWE
CWE-59: Improper Link Resolution Before File Access ('Link Following') CWE