CVE-2026-54089
File Browser: Authentication Bypass via Proxy Auth Header Forgery
Sévérité par source
Le label propre à Trivy est CRITICAL. Critique selon GHSA.
Description
File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Starting with 2.0.0-rc.1, when FileBrowser is configured with proxy authentication (auth.method=proxy), any unauthenticated attacker who can reach the server directly can impersonate any user - including admin - by sending a single forged HTTP header. No credentials are required. Additionally, specifying a non-existent username causes the server to automatically create a new user account, providing an account creation primitive with no authorization. This is an already known issue that has been documented in the documentation for several years, but has not been documented as a vulnerability before.
Paquets affectés et versions corrigées
| Source | Paquet | Corrigé en |
|---|---|---|
| go::GitHub Security Advisory Go | github.com/filebrowser/filebrowser/v2 | pas de correctif indiqué |
| chainguard | filebrowser | 2.63.19-r0 |
| wolfi | filebrowser | 2.63.19-r0 |
Références
- https://github.com/filebrowser/filebrowser
- https://github.com/filebrowser/filebrowser/blob/main/auth/proxy.go
- https://github.com/filebrowser/filebrowser/blob/main/http/auth.go#L121-L137
- https://github.com/filebrowser/filebrowser/security/advisories/GHSA-xqp3-jq6g-x3qm
- https://nvd.nist.gov/vuln/detail/CVE-2026-54089