CVE-2026-42888: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in advplyr audiobookshelf
Audiobookshelf versions prior to 2.33.2 contain a path traversal vulnerability in the podcast creation endpoint. This flaw allows an attacker to supply a file path that is not properly validated to remain within the intended library directory. The vulnerability is identified as CWE-22 and has a CVSS 4.0 base score of 6.9, indicating medium severity. The issue is fixed in version 2.33.2.
AI Analysis
Technical Summary
CVE-2026-42888 is a path traversal vulnerability in advplyr's Audiobookshelf prior to version 2.33.2. The podcast creation endpoint in server/controllers/PodcastController.js accepts user-controlled file paths without sufficient boundary validation, allowing potential unauthorized access to files outside the intended directory. This vulnerability is classified under CWE-22 and has a CVSS 4.0 score of 6.9 (medium severity). The issue is resolved in version 2.33.2.
Potential Impact
An attacker can exploit this vulnerability to access or manipulate files outside the designated library directory on the Audiobookshelf server. This could lead to unauthorized disclosure or modification of files accessible by the server process. No known exploits in the wild have been reported.
Mitigation Recommendations
Upgrade Audiobookshelf to version 2.33.2 or later, where this path traversal vulnerability is fixed. Since the product is self-hosted, administrators must apply this update manually. Patch status is confirmed by the vendor's versioning information.
CVE-2026-42888: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in advplyr audiobookshelf
Description
Audiobookshelf versions prior to 2.33.2 contain a path traversal vulnerability in the podcast creation endpoint. This flaw allows an attacker to supply a file path that is not properly validated to remain within the intended library directory. The vulnerability is identified as CWE-22 and has a CVSS 4.0 base score of 6.9, indicating medium severity. The issue is fixed in version 2.33.2.
CVSS v4.0
Score 6.9medium
Affected software
pkg:github/advplyr/audiobookshelfRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-42888 is a path traversal vulnerability in advplyr's Audiobookshelf prior to version 2.33.2. The podcast creation endpoint in server/controllers/PodcastController.js accepts user-controlled file paths without sufficient boundary validation, allowing potential unauthorized access to files outside the intended directory. This vulnerability is classified under CWE-22 and has a CVSS 4.0 score of 6.9 (medium severity). The issue is resolved in version 2.33.2.
Potential Impact
An attacker can exploit this vulnerability to access or manipulate files outside the designated library directory on the Audiobookshelf server. This could lead to unauthorized disclosure or modification of files accessible by the server process. No known exploits in the wild have been reported.
Mitigation Recommendations
Upgrade Audiobookshelf to version 2.33.2 or later, where this path traversal vulnerability is fixed. Since the product is self-hosted, administrators must apply this update manually. Patch status is confirmed by the vendor's versioning information.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-04-30T18:49:06.712Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a028763cbff5d86108b6832
Added to database: 05/12/2026, 01:50:27 UTC
Last enriched: 05/19/2026, 10:55:20 UTC
Last updated: 07/07/2026, 22:28:21 UTC
Views: 71
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