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CVE-2026-27611

HIGH CVSS 4.0: 7.1 EPSS 0.05%
Updated Feb 25, 2026
FileBrowser
Parameter Value
CVSS 7.1 (HIGH)
Type CWE-200 (Information Exposure), CWE-287 (Improper Authentication), CWE-288 (Authentication Bypass Using Alternate Path)
Vendor FileBrowser
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
Passive
Minimal interaction

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
Low
Partial data modification
Availability
None
No disruption

CVSS Vector v4.0