CVE-2026-35606
High
Description
File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.1, the resourceGetHandler in http/resource.go returns full text file content without checking the Perm.Download permission flag. All three other content-serving endpoints (/api/raw, /api/preview, /api/subtitle) correctly verify this permission before serving content. A user with download: false can read any text file within their scope through two bypass paths. This vulnerability is fixed in 2.63.1.
SeverityHigh
CVSS7.5
Exploit probability—
ProductFilebrowser
PublishedApr 7, 2026
First seenApr 7, 2026
Weakness typeCWE-862Missing authorization
How to fix
Update
- github.com/filebrowser/filebrowser/v22.63.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| filebrowser filebrowser | v ≤ 2.63.0 | — |
| github.com/filebrowser/filebrowser/v2Go | v < 2.63.1 | 2.63.1 |
| 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.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.