CVE-2026-29188 File Browser: TUS Delete Endpoint Bypasses Delete Permission Check
Authenticated users with Create permission can delete arbitrary files, bypassing Delete permission restrictions in File Browser.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-29188?
CVE-2026-29188 is a critical missing authorization vulnerability in filebrowser, published on 5 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename and edit files. Prior to version 2.61.1, a broken access control vulnerability in the TUS protocol DELETE endpoint allows authenticated users with only Create permission to delete arbitrary files and directories within their scope, bypassing the intended Delete permission restriction. Any multi-user deployment where administrators explicitly restrict file deletion for certain users is affected. This issue has been patched in version 2.61.1.
Which versions are affected by CVE-2026-29188?
4 open source packages ship an affected version, including github.com/filebrowser/filebrowser/v2 and github.com/filebrowser/filebrowser. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/filebrowser/filebrowser/v2 Go | All versions | 2.61.1 |
github.com/filebrowser/filebrowser/v2 Go | All versions | 2.61.1 |
github.com/filebrowser/filebrowser/v2 Go | All versions | 2.61.1 |
github.com/filebrowser/filebrowser Go | All versions | None |
Products include Filebrowser Filebrowser.
How do I fix CVE-2026-29188?
Upgrade github.com/filebrowser/filebrowser/v2 to 2.61.1 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-29188 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-29188 exists.
Other vulnerabilities in filebrowser
- CVE-2026-32760 File Browser Self Registration Grants Any User Admin Access When Default Permissions Include Admin
- CVE-2023-39612 Cross-site scripting in n/a
- CVE-2026-30934 FileBrowser Quantum: Stored XSS in public share page via unsanitized share metadata (text/template misuse)
- CVE-2021-46398 Cross-Site Request Forgery in Filebrowser
- CVE-2026-35604 File Browser share links remain accessible after Share/Download permissions are revoked
Sources
Also known as GHSA-79pf-vx4x-7jmm, GO-2026-4606.