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CVE-2026-54685

FileBrowser Quantum has Username Enumeration via Authentication Timing Side-Channel PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
gtsteffaniak / filebrowseraffected < 1.3.2-beta

CWE

CWE-208

References

ADP enrichment

CISA-ADP

No English description supplied.