Vulnerability · Published May 11, 2026 · Assigned by GitHub_M
CVE-2026-42884Audiobookshelf: Collection endpoints bypass library access controls exposing restricted library data
Medium 4.3
In plain English
A medium-severity incorrect authorization in audiobookshelf from advplyr. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 10% of all known vulnerabilities).
Official description
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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| advplyr | audiobookshelf | < 2.33.2 |
Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N