Filebrowser
CVE-2026-25890
HIGH
GHSA-4mh3-h929-w968
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Primary rating from GitHub Advisory.
CVSS VectorGitHub Advisory
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Lifecycle Timeline
4DescriptionGitHub Advisory
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.
AnalysisAI
Path normalization bypass in Filebrowser prior to 2.57.1 allows authenticated users to circumvent file access restrictions by injecting multiple slashes into request URLs, enabling unauthorized access to files designated as restricted. The vulnerability exploits a mismatch between the authorization validation logic and filesystem path resolution, affecting users running vulnerable versions. Public exploit code exists for this high-severity issue.
Technical ContextAI
This vulnerability (CWE-706: Use of Incorrectly-Resolved Name or Reference) affects Filebrowser. 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 vuln
RemediationAI
A vendor patch is available — apply it immediately. Fixed in version 2.57.1.. Restrict network access to the affected service where possible.
More in Filebrowser
View allUnauthorized file operations in File Browser before fix. PoC and patch available.
A cross-site scripting (XSS) vulnerability in FileBrowser before v2.23.0 allows an authenticated attacker to escalate pr
File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, previ
File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, previ
File Browser versions prior to 2.61.0 incorrectly set the filesystem root to a parent directory when generating public s
File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, previ
File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, previ
Filebrowser versions prior to 2.57.1 allow authenticated users to reset passwords without verifying the current password
Path traversal in FileBrowser Quantum (gtsteffaniak fork) versions prior to 1.3.2-stable, 1.4.0-beta, and 1.4.1-beta all
Filebrowser versions up to 2.55.0 contains a vulnerability that allows attackers to enumerate valid usernames by measuri
Pre-authentication remote code execution in File Browser before 2.63.6 lets unauthenticated attackers run arbitrary OS c
Authentication bypass and privilege escalation in File Browser (versions 2.0.0-rc.1 and later) lets a remote unauthentic
Same technique Authentication Bypass
View allVendor StatusVendor
SUSE
Severity: High| Product | Status |
|---|---|
| openSUSE Leap 15.6 | Fixed |
| SUSE Linux Enterprise Module for Package Hub 15 SP5 | Fixed |
| SUSE Linux Enterprise Module for Package Hub 15 SP6 | Fixed |
| openSUSE Leap 15.5 | Fixed |
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External POC / Exploit Code
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