CVE-2026-42886
MEDIUM EPSS 16.9%
Published May 11, 20261mo ago · Modified Jun 17, 20262w ago
4.9 CVSS 3.1
Published May 11, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago
Description
Audiobookshelf is a self-hosted audiobook and podcast server. Prior to 2.32.2, the POST /api/backups/upload endpoint decompresses the details entry from an uploaded .audiobookshelf ZIP file entirely into memory using zip.entryData(), with no limit on the decompressed size. The upload middleware also has no file size limit. An admin user can upload a crafted ZIP containing a highly compressed details entry that, when decompressed, consumes hundreds of megabytes or gigabytes of memory, crashing the server process via out-of-memory. This vulnerability is fixed in 2.32.2.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
16.9% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-409
References 1
- github.com https://github.com/advplyr/audiobookshelf/security/advisories/GHSA-4jq4-rvq8-j26h
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.