CVSS 3.1
8.1 highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2026-62685
High (8.1). EPSS 0.6% chance of exploitation in the next 30 days. Fixed in github.com/filebrowser/filebrowser/v2 2.63.17.
File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.17, File Browser builds new user scopes from usernames passed through cleanUsername() when Signup=true and CreateUserDir=true, but the many-to-one normalization can collapse usernames such as team/one, team one, and team-one to the same home directory without checking whether the resulting scope is already taken, allowing a second registrant to gain full read and write access to another user's files. This issue is fixed in version 2.63.17.
Severity
- EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 46% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-647, CWE-706
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-7rc3-g7h6-22m7 | Go | github.com/filebrowser/filebrowser/v2 | <2.63.17 | 2.63.17 |
| GO-2026-6024 | Go | github.com/filebrowser/filebrowser | all versions | no fix published |
| GO-2026-6024 | Go | github.com/filebrowser/filebrowser/v2 | <2.63.17 | 2.63.17 |
References
- https://github.com/filebrowser/filebrowser/commit/883a36f02fcb69566a8628cb47f18fdc73348387
- https://github.com/filebrowser/filebrowser/releases/tag/v2.63.17
- https://github.com/filebrowser/filebrowser/security/advisories/GHSA-7rc3-g7h6-22m7
- https://github.com/filebrowser/filebrowser/security/advisories/GHSA-7rc3-g7h6-22m7