---
id: CVE-2026-92803
title: >-
  LibreTranslate through 1.9.6 omits the access_check decorator from the
  download_file route, allowing unauthenticated access to translated files
summary: >-
  LibreTranslate through 1.9.6 omits the access_check decorator from the
  download_file route, allowing unauthenticated access to translated files.
  Attackers can bypass API key requirements and abuse ban lists to download
  files without auth…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-862
vendor: LibreTranslate
product: LibreTranslate
affected:
  - LibreTranslate <= 1.9.6
published: '2026-09-16'
updated: '2026-09-22'
sourceUpdated: '2026-09-22T20:53:07.383'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-92803'
references:
  - url: 'https://github.com/LibreTranslate/LibreTranslate'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/LibreTranslate/LibreTranslate/blob/v1.9.6/libretranslate/app.py#L1029-L1030
    label: disclosure@vulncheck.com
  - url: 'https://github.com/LibreTranslate/LibreTranslate/issues/1012'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/libretranslate-through-1.9.6-missing-access-check-on-the-download-file-route
    label: disclosure@vulncheck.com
  - url: 'https://github.com/LibreTranslate/LibreTranslate/issues/1012'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00525
epssPercentile: 0.42004
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-17T14:59:01.047492Z'
ingestedAt: '2026-09-16T21:05:36.884Z'
---

## Overview

LibreTranslate through 1.9.6 omits the access_check decorator from the download_file route, allowing unauthenticated access to translated files. Attackers can bypass API key requirements and abuse ban lists to download files without authentication on protected instances.

## Remediation

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