High severity8.1NVD Advisory· Published Feb 9, 2026· Updated Jun 17, 2026
CVE-2026-25890
CVE-2026-25890
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 2.57.1, an authenticated user can bypass the application's "Disallow" file path rules by modifying the request URL. By adding multiple slashes (e.g., //private/) to the path, the authorization check fails to match the rule, while the underlying filesystem resolves the path correctly, granting unauthorized access to restricted files. This vulnerability is fixed in 2.57.1.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/filebrowser/filebrowser/v2Go | < 2.57.1 | 2.57.1 |
Affected products
9cpe:2.3:a:filebrowser:filebrowser:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:filebrowser:filebrowser:*:*:*:*:*:*:*:*range: <2.57.1
- (no CPE)range: < 2.57.2
- osv-coords7 versionspkg:apk/chainguard/filebrowserpkg:apk/chainguard/filebrowser-compatpkg:apk/wolfi/filebrowserpkg:apk/wolfi/filebrowser-compatpkg:golang/github.com/filebrowser/filebrowser/v2pkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2016.0
< 2.59.0-r0+ 6 more
- (no CPE)range: < 2.59.0-r0
- (no CPE)range: < 2.59.0-r0
- (no CPE)range: < 2.59.0-r0
- (no CPE)range: < 2.59.0-r0
- (no CPE)range: < 2.57.1
- (no CPE)range: < 0.0.20260226T182644-150000.1.149.1
- (no CPE)range: < 0.0.20260723T184607-160000.1.1
Patches
Vulnerability mechanics
References
5- github.com/filebrowser/filebrowser/commit/489af403a19057f6b6b4b1dc0e48cbb26a202ef9nvdPatchWEB
- github.com/filebrowser/filebrowser/security/advisories/GHSA-4mh3-h929-w968nvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-4mh3-h929-w968ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-25890ghsaADVISORY
- github.com/filebrowser/filebrowser/releases/tag/v2.57.1nvdProductRelease NotesWEB
News mentions
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