SEPTEMBER 7, 2026
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Case File

CVE-2026-54685

MEDIUM · CVSS 5.3 EPSS 0.27% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-20 · Last synced 2026-08-19

CyberRota Analysis

AI-Generated

The authentication endpoint of FileBrowser Quantum prior to version 1.3.2-beta is vulnerable to timing attacks due to inconsistent response times when handling login requests for valid versus invalid usernames. This flaw can potentially allow an attacker to enumerate valid usernames by measuring response delays, leading to unauthorized access. Organizations using affected versions should prioritize upgrading to version 1.3.2-beta to mitigate this risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-54685
Severity
MEDIUM
CVSS
5.3
EPSS
0.27%

Original NVD Description

FileBrowser Quantum is a free, self-hosted, web-based file manager. Prior to version 1.3.2-beta, the `/api/auth/login` authentication endpoint does not execute in constant time. When a non-existent username is supplied, the server returns a `401`/`403` response almost immediately. When a valid username is provided, the server performs a bcrypt password comparison, causing a measurable delay in the response time. Version 1.3.2-beta patches the issue.