CVEvulnerability

CVE-2026-42886

4.9 MEDIUM Published 2026-05-11 Modified 2026-10-26 Official page ↗
Status
Deferred
Published
2026-05-11
Last modified
2026-10-26
Assigner
[email protected]
CVSS 3.1 ([email protected])
4.9 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-409

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.

Related

Weakness · CWE (1)

  • CWE-409 Improper Handling of Highly Compressed Data (Data Amplification) weakness

References