What’s Vulnerable › Vulnerabilities

CVE-2026-42884: Audiobookshelf: Collection endpoints bypass library access controls exposing restricted library data

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-11 · updated 2026-10-26
• Weakness: CWE-863

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

• advplyr audiobookshelf: before 2.33.2

References

• https://github.com/advplyr/audiobookshelf/security/advisories/GHSA-rxw2-h55w-ffmh
• https://github.com/advplyr/audiobookshelf/security/advisories/GHSA-rxw2-h55w-ffmh

Get alerted when CVE-2026-42884 or the next vulnerability affects your stack