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

CVSS 4.3 · Medium EPSS 0.03% · P8

Affected Version Matrix 1

VendorProductVersion RangeStatus
advplyraudiobookshelf< 2.33.2affected
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I. Basic Information for CVE-2026-42884

Vulnerability Information
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Vulnerability Title
Audiobookshelf: Collection endpoints bypass library access controls exposing restricted library data
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制不正确
Source: NVD (National Vulnerability Database)
Vulnerability Title
Audiobookshelf 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Audiobookshelf是Audiobookshelf开源的一个自托管的有声读物和播客服务器。 Audiobookshelf 2.32.2之前版本存在安全漏洞，该漏洞源于集合端点未检查用户对库的访问权限，导致经过身份验证的用户可枚举和读取受限库的集合。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
advplyraudiobookshelf < 2.33.2 -

II. Public POCs for CVE-2026-42884

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III. Intelligence Information for CVE-2026-42884

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Same Patch Batch · advplyr · 2026-05-11 · 6 CVEs total

CVE-2026-428836.5 MEDIUMAudiobookshelf: Cross-library file exfiltration via unscoped bulk download endpoint
CVE-2026-428864.9 MEDIUMAudiobookshelf: Memory amplification DoS via oversized compressed details entry in backup
CVE-2026-428874.5 MEDIUMAudiobookshelf: Stored Cross-Site Scripting in Login Page Custom Message
CVE-2026-428854.3 MEDIUMAudiobookshelf: Path prefix bypass in filesystem existence check leaks out-of-scope file e
CVE-2026-42888Audiobookshelf: Path Traversal vulnerability in the audiobookshelf project

IV. Related Vulnerabilities

Same product: audiobookshelf
Same vendor: advplyr
Same weakness: CWE-863

V. Comments for CVE-2026-42884

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