CVE-2026-27611

FileBrowser Quantum: Password Protection Not Enforced on Shared File Links

State: Published
Severity: 7.1 High
Published: Feb 25, 2026
Updated: Feb 27, 2026
Reserved: Feb 20, 2026

Description

FileBrowser Quantum is a free, self-hosted, web-based file manager. Prior to versions 1.1.3-stable and 1.2.6-beta, when users share password-protected files, the recipient can completely bypass the password and still download the file. This happens because the API returns a direct download link in the details of the share, which is accessible to anyone with JUST THE SHARE LINK, even without the password. Versions 1.1.3-stable and 1.2.6-beta fix the issue.

Scores

CVSS	Score	Vector	Source
4.0	7.1 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N	GitHub_M

Weaknesses

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
CWE-288 Authentication Bypass Using an Alternate Path or Channel
CWE-287 Improper Authentication

Affected Products

Product	Versions
filebrowsergtsteffaniak	< 1.1.3-stableAffected >= 1.2.0-beta, < 1.2.6-betaAffected

References

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