CVE-2026-42884: Advplyr Audiobookshelf

Medium severity, CVSS 4.3. EPSS: 0.3% chance of exploitation in the next 30 days.

Audiobookshelf is a self-hosted audiobook and podcast server. Prior to 2.32.2, the GET /api/collections and GET /api/collections/:id endpoints return collections from all libraries without checking whether the requesting user has access to each collection's library. An authenticated user with access to any library can enumerate and read collections (including full book metadata) from libraries they are explicitly restricted from accessing. This vulnerability is fixed in 2.32.2.

Affected products

• Advplyr Audiobookshelf: before 2.33.2 (fixed in 2.33.2)

Published 2026-05-11. Last modified 2026-06-17.