Vulnerability · Published Apr 7, 2026 · Assigned by GitHub_M
CVE-2026-35604File Browser share links remain accessible after Share/Download permissions are revoked
High 8.2
In plain English
A high-severity incorrect authorization in filebrowser from filebrowser. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.1, when an admin revokes a user's Share and Download permissions, existing share links created by that user remain fully accessible to unauthenticated users. The public share download handler does not re-check the share owner's current permissions. This vulnerability is fixed in 2.63.1.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/filebrowser/filebrowser | no fix listed | GO-2026-5659 |
| Go | github.com/filebrowser/filebrowser/v2 | 2.63.1 | GHSA-v9w4-gm2x-6rvf |
| Go | github.com/filebrowser/filebrowser/v2 | 2.63.1 | GO-2026-5659 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| filebrowser | filebrowser | < 2.63.1 |
Weakness: CWE-863 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
References
- https://github.com/filebrowser/filebrowser/security/advisories/GHSA-v9w4-gm2x-6rvf x_refsource_CONFIRM
- https://github.com/filebrowser/filebrowser/pull/5888 x_refsource_MISC