PT-2026-39749 · Unknown · Audiobookshelf

Bugbunny-Research · CVE-2026-42884 · Published 2026-05-11 · Updated 2026-05-11

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions Audiobookshelf versions prior to 2.32.2

Description 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 occurs because the 'GET /api/collections' and 'GET /api/collections/:id' endpoints return collections from all libraries without verifying if the requesting user has the necessary permissions for each collection's library.

Recommendations Update to version 2.32.2.

Exploit

Fix

Incorrect Authorization

Weakness Enumeration

CWE-863

Related Identifiers

CVE-2026-42884

GHSA-RXW2-H55W-FFMH

Affected Products

Audiobookshelf

References · 4

• 🔥 https://github.com/advplyr/audiobookshelf/security/advisories/GHSA-rxw2-h55w-ffmh · Exploit
• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42884.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-42884 · Security Note
• https://osv.dev/vulnerability/CVE-2026-42884 · Vendor Advisory