Vulnerability · Published Jul 8, 2026 · Assigned by GitHub_M
CVE-2026-55668File Browser: ScopedFs follows a dangling symlink on write, letting a scoped user create files outside their scope
Medium 6.3
In plain English
A medium-severity path traversal in filebrowser from filebrowser. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 32% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/filebrowser/filebrowser | no fix listed | GO-2026-6020 |
| Go | github.com/filebrowser/filebrowser/v2 | 2.63.16 | GHSA-8wc8-hf36-mjh9 |
| Go | github.com/filebrowser/filebrowser/v2 | 2.63.16 | GO-2026-6020 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| filebrowser | filebrowser | < 2.63.16 |
Weakness: CWE-22, CWE-59 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N