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 crafted file path that bypasses directory restrictions, potentially accessing files outside 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. A fix has been released in version 2. 33. 2 to address this issue.
AI Analysis
Technical Summary
CVE-2026-42888 is a path traversal vulnerability in advplyr's Audiobookshelf server, specifically in the podcast creation endpoint located at server/controllers/PodcastController.js. The endpoint accepts user-controlled file paths without adequate boundary validation, allowing traversal outside the designated library directory. This can lead to unauthorized file access. The vulnerability affects versions prior to 2.33.2 and is fixed in version 2.33.2. The CVSS 4.0 score is 6.9 (medium severity), reflecting network attack vector, no privileges or user interaction required, and limited impact on integrity.
Potential Impact
Exploitation of this vulnerability could allow an unauthenticated remote attacker to read files outside the intended directory boundaries on the Audiobookshelf server. This may lead to unauthorized disclosure of sensitive information stored on the server. There are no known exploits in the wild at this time.
Mitigation Recommendations
Upgrade Audiobookshelf to version 2.33.2 or later, where this path traversal vulnerability has been fixed. Since this is a self-hosted product, administrators should apply the update promptly to mitigate the risk. Patch status is confirmed fixed in version 2.33.2.
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 crafted file path that bypasses directory restrictions, potentially accessing files outside 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. A fix has been released in version 2. 33. 2 to address this issue.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-42888 is a path traversal vulnerability in advplyr's Audiobookshelf server, specifically in the podcast creation endpoint located at server/controllers/PodcastController.js. The endpoint accepts user-controlled file paths without adequate boundary validation, allowing traversal outside the designated library directory. This can lead to unauthorized file access. The vulnerability affects versions prior to 2.33.2 and is fixed in version 2.33.2. The CVSS 4.0 score is 6.9 (medium severity), reflecting network attack vector, no privileges or user interaction required, and limited impact on integrity.
Potential Impact
Exploitation of this vulnerability could allow an unauthenticated remote attacker to read files outside the intended directory boundaries on the Audiobookshelf server. This may lead to unauthorized disclosure of sensitive information stored on the server. There are no known exploits in the wild at this time.
Mitigation Recommendations
Upgrade Audiobookshelf to version 2.33.2 or later, where this path traversal vulnerability has been fixed. Since this is a self-hosted product, administrators should apply the update promptly to mitigate the risk. Patch status is confirmed fixed in version 2.33.2.
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: 5/12/2026, 1:50:27 AM
Last enriched: 5/12/2026, 2:06:07 AM
Last updated: 5/12/2026, 3:48:58 AM
Views: 2
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