---
id: CVE-2026-73612
title: >-
  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
summary: >-
  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 de…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-639
published: '2026-08-13'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T20:32:39.347'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-73612'
references:
  - url: >-
      https://github.com/filebrowser/filebrowser/commit/72faf6dd3c85628e332d3e567124b86708ce2695
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/filebrowser/filebrowser/security/advisories/GHSA-77x8-73f4-5485
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/file-browser-before-authorization-bypass-via-recursive-operations
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/filebrowser/filebrowser/security/advisories/GHSA-77x8-73f4-5485
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00476
epssPercentile: 0.38542
ingestedAt: '2026-09-08T21:11:12.276Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.