CVE-2026-27611

FileBrowser Quantum: Password Protection Not Enforced on Shared File Links

MEDIUM
6.5
CVSS Score
Published: February 25, 2026 at 02:24 AM UTC
Updated: June 17, 2026 at 10:27 AM UTC
2 products affected across 1 vendorFilebrowser QuantumFilebrowser

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.4%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.1.31.2.0 ≤ v < 1.2.61.1.3 beta
v < 1.1.3-stablev < 1.2.6-beta
Affected range stops below 1.1.3-stable, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.2.6-beta, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-200CWE-287CWE-288

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