Vulnerability · Published Feb 25, 2026 · Assigned by GitHub_M
CVE-2026-27611FileBrowser Quantum: Password Protection Not Enforced on Shared File Links
High 7.1
In plain English
A high-severity information exposure in filebrowser from gtsteffaniak. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/gtsteffaniak/filebrowser/backend | 0.0.0-20260221163904-dbcfba993b85 | GHSA-8vrh-3pm2-v4v6 |
| Go | github.com/gtsteffaniak/filebrowser/backend | 0.0.0-20260221163904-dbcfba993b85 | GO-2026-4546 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| gtsteffaniak | filebrowser | < 1.1.3-stable>= 1.2.0-beta, < 1.2.6-beta |
Weakness: CWE-200, CWE-288, CWE-287 · Vector: 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