CVE-2026-35606
File Browser discloses text file content via /api/resources endpoint bypassing Perm.Download check
Record summary
CVE-2026-35606 has a selected CVSS score of 5.3 (medium).
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.
Exploitation context
CISA SSVC decision
CISA Coordinator · SSVC 2.0.3 · Evaluated Apr 9, 2026 · Source: CVE List
Affected products and versions
2| Product | Source | Version range | Status |
|---|---|---|---|
filebrowserBrowse filebrowser / filebrowser | CVE List | < 2.63.1 | affected |
github.com/filebrowser/filebrowser/v2Browse Go / github.com/filebrowser/filebrowser/v2 | GitHub Advisory | Before 2.63.1 · Fixed in 2.63.1 | affected |