CVE-2026-73612
Received Received - Intake

File Browser Path Bypass via Recursive Operations

Publication date: 2026-08-13

Last updated on: 2026-08-13

Assigner: VulnCheck

Description
File Browser before v2.63.22 fails to validate access rules for descendants during recursive copy, rename, and delete operations, allowing authenticated users to bypass path-based access controls. Attackers can copy, rename, or delete denied files by operating on their allowed parent directory, defeating rule-based isolation for confidentiality and integrity.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-08-13
Last Modified
2026-08-13
Generated
2026-08-13
AI Q&A
2026-08-13
EPSS Evaluated
N/A
NVD
CVE-2026-73612
EUVD
EUVD-2026-57816

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
filebrowser file_browser to 2.63.22 (exc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-639 The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

File Browser before v2.63.22 has a flaw where recursive operations like copy, rename, and delete do not properly validate access rules for all files involved. This allows authenticated users to bypass path-based restrictions by operating on allowed parent directories, gaining unauthorized access to files that should be restricted.

Detection Guidance

To detect this vulnerability, check the installed version of File Browser. Run: filebrowser version. If the version is below 2.63.22, the system is vulnerable. Additionally, review user permissions for recursive operations like copy, rename, and delete to identify potential misuse.

Impact Analysis

An attacker with authenticated access could copy, rename, or delete files they are not permitted to access by manipulating parent directories. This compromises data confidentiality and integrity, potentially leading to unauthorized data exposure, modification, or deletion.

Compliance Impact

This vulnerability could lead to unauthorized access or deletion of sensitive data, violating confidentiality and integrity requirements in GDPR and HIPAA. Organizations using affected versions may fail compliance audits due to inadequate access controls.

Mitigation Strategies

Immediately upgrade File Browser to version 2.63.22 or later. Until then, restrict create, rename, and delete permissions for users with access rules denying descendant files. Monitor logs for unusual recursive operations.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-73612. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart