---
id: CVE-2026-91144
title: >-
  ZFile through 5.0.5 fails to validate requested file paths against a share
  link's allowed entries on the download endpoint
summary: >-
  ZFile through 5.0.5 fails to validate requested file paths against a share
  link's allowed entries on the download endpoint. Attackers holding a share
  link can supply arbitrary file paths as query parameters to download any file
  under the…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-639
vendor: zfile-dev
product: zfile
affected:
  - zfile <= 5.0.5
published: '2026-09-14'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T21:08:55.030'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-91144'
references:
  - url: 'https://github.com/zfile-dev/zfile'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/zfile-dev/zfile/blob/5.0.5/src/main/java/im/zhaojun/zfile/module/share/service/ShareLinkFileService.java
    label: disclosure@vulncheck.com
  - url: 'https://github.com/zfile-dev/zfile/issues/826'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/zfile-through-5.0.5-share-entry-filter-bypass-via-download-endpoint
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
epss: 0.00506
epssPercentile: 0.40645
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-17T18:28:24.541944Z'
ingestedAt: '2026-09-14T22:16:09.894Z'
---

## Overview

ZFile through 5.0.5 fails to validate requested file paths against a share link's allowed entries on the download endpoint. Attackers holding a share link can supply arbitrary file paths as query parameters to download any file under the shared base directory, bypassing the intended access restrictions.

## Remediation

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