CVE-2026-42888
Received Received - Intake
Path Traversal in Audiobookshelf Server

Publication date: 2026-05-11

Last updated on: 2026-05-11

Assigner: GitHub, Inc.

Description
Audiobookshelf is a self-hosted audiobook and podcast server. Prior to 2.32.2, the podcast creation endpoint at server/controllers/PodcastController.js accepts a user-controlled file path without sufficient boundary validation to ensure it remains within the intended library directory. This vulnerability is fixed in 2.32.2.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-05-11
Last Modified
2026-05-11
Generated
2026-06-21
AI Q&A
2026-05-12
EPSS Evaluated
2026-06-20
NVD
CVE-2026-42888
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
audiobookshelf audiobookshelf 2.32.2
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-22 The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Executive Summary

This vulnerability exists in Audiobookshelf, a self-hosted audiobook and podcast server. Before version 2.32.2, the podcast creation endpoint in the server's PodcastController.js file accepts a file path provided by the user without properly validating that the path stays within the intended library directory.

Because of insufficient boundary validation, an attacker could potentially specify a file path that escapes the designated directory, which could lead to unauthorized access or manipulation of files outside the allowed area.

This issue was fixed in version 2.32.2 of Audiobookshelf.

Impact Analysis

This vulnerability can allow an attacker to access or modify files outside the intended library directory by exploiting the lack of proper path validation.

Such unauthorized file access could lead to data leakage, data corruption, or unauthorized changes to the server's files, potentially compromising the integrity and confidentiality of the system.

Mitigation Strategies

The vulnerability is fixed in Audiobookshelf version 2.32.2. The immediate step to mitigate this vulnerability is to upgrade your Audiobookshelf installation to version 2.32.2 or later.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-42888. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart