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SCA: security update for github.com/gtsteffaniak/filebrowser/backend (GHSA-vvp7-h4fj-m28w)

high Tenable Self-Hosted Container Security Plugin ID 445537

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - FileBrowser Quantum is a free, self-hosted, web-based file manager. Prior to version 1.4.3-beta, the
 `subtitlesHandler` endpoint (`GET /api/media/subtitles`) accepts two user-controlled query parameters:
 `path` and `name`, both of which are used in filesystem operations without sanitization, creating two
 independent path traversal vectors. The primary vector is the `path` parameter: it is passed directly to
 `idx.GetRealPath()` without calling `SanitizeUserPath()`, allowing an attacker to escape the storage root
 and set `parentDir` to any directory on the host. No existing anchor file is required. The secondary
 vector is the `name` parameter: it is joined with `parentDir` via `filepath.Join(parentDir, name)` without
 stripping directory components, allowing traversal relative to any resolved `parentDir`. Any authenticated
 user (regardless of role or permissions) can exploit either vector to read any text file readable by the
 server process, including `/etc/passwd`, SSH keys, database credentials, and JWT signing keys. Version
 1.4.3-beta patches the issue. (CVE-2026-54910)

Solution

Update the github.com/gtsteffaniak/filebrowser/backend library and its related packages to version 0.0.0-20260608182036-f3f4bbe80cb5 or later.

See Also

https://github.com/advisories/GHSA-vvp7-h4fj-m28w

Plugin Details

Severity: High

ID: 445537

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 8/1/2026

Updated: 8/1/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3.3

Percentile: 51.16

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:N/A:N

CVSS Score Source: CVE-2026-54910

CVSS v3

Risk Factor: High

Base Score: 7.7

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 7/31/2026

Vulnerability Publication Date: 7/20/2026

Reference Information

CVE: CVE-2026-54910