CVE-2026-54089

Katalog CVE

CVSS 9.1 · Critical EPSS 0,61%

Kerentanan Improper Authentication. Skor CVSS 3.1 9.1 (Critical) menurut github.com.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

25 Juni 2026

Terakhir diubah

25 Juni 2026

Status NVD

Deferred

CVSS 3.1

9.1 (Critical), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-287: Improper Authentication
CWE-290: Authentication Bypass by Spoofing

EPSS (30 hari)

0,61% peluang dieksploitasi; lebih tinggi dari 47,9% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• 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