---
id: CVE-2026-111925
title: Mopidy before 4.0.5 Path Traversal via File Backend library.lookup
summary: >-
  Mopidy before 4.0.5 contains a path traversal vulnerability that allows
  unauthenticated clients to access local files outside file/media_dirs because
  FileLibraryProvider.lookup() lacks a containment check. Attackers can call
  core.library…
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'
cvssSource: cna
cwe:
  - CWE-22
vendor: Mopidy
product: Mopidy
affected:
  - Mopidy < 4.0.5
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-19T14:24:12.380918Z'
exploitAvailable: true
published: '2026-10-19'
updated: '2026-10-19'
sourceUpdated: '2026-10-19T14:24:41.987Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-111925'
references:
  - url: 'https://github.com/mopidy/mopidy/issues/2350'
  - url: >-
      https://github.com/mopidy/mopidy/commit/f23c1f8621c3f4eb07a35d37fccb597449d36415
  - url: >-
      https://github.com/mopidy/mopidy/blob/v4.0.4/src/mopidy/_exts/file/library.py
  - url: 'https://github.com/mopidy/mopidy/releases/tag/v4.0.5'
    label: Mopidy v4.0.5 Release Notes
  - url: >-
      https://www.vulncheck.com/advisories/mopidy-before-4.0.5-path-traversal-via-file-backend-library-lookup
    label: >-
      VulnCheck Advisory: Mopidy before 4.0.5 Path Traversal via File Backend
      library.lookup
tags:
  - cve.org
  - exploit-available
ingestedAt: '2026-10-19T14:30:01.078Z'
---

## Overview

Mopidy before 4.0.5 contains a path traversal vulnerability that allows unauthenticated clients to access local files outside file/media_dirs because FileLibraryProvider.lookup() lacks a containment check. Attackers can call core.library.lookup or core.tracklist.add over JSON-RPC or WebSocket with file:// URIs to probe file existence, read tag metadata, and play out-of-sandbox files.

## Affected

- `Mopidy < 4.0.5`

## Remediation

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