CVE-2026-34528
Description
File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to version 2.62.2, the signupHandler in File Browser applies default user permissions via d.settings.Defaults.Apply(user), then strips only Admin. The Execute permission and Commands list from the default user template are not stripped. When an administrator has enabled signup, server-side execution, and set Execute=true in the default user template, any unauthenticated user who self-registers inherits shell execution capabilities and can run arbitrary commands on the server. This issue has been patched in version 2.62.2.
How to fix
- filebrowser filebrowser2.62.2 or later
- github.com/filebrowser/filebrowser/v22.62.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| filebrowser filebrowser | v < 2.62.2 | 2.62.2 |
| github.com/filebrowser/filebrowser/v2Go | v < 2.62.2 | 2.62.2 |
| github.com/filebrowser/filebrowserGo | No range specified | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.