CVE-2026-42883
Audiobookshelf: Cross-library file exfiltration via unscoped bulk download endpoint
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
8th
Audiobookshelf is a self-hosted audiobook and podcast server. Prior to 2.32.2, the GET /api/libraries/:id/download endpoint validates that the requesting user has access to the library specified in the URL path, but fetches downloadable items solely by attacker-provided IDs without constraining them to that library. An authenticated user with download permission and access to any one library can exfiltrate the full file contents of items belonging to any other library, including libraries they are explicitly denied access to. This vulnerability is fixed in 2.32.2.
| CWE | CWE-863 |
| Vendor | advplyr |
| Product | audiobookshelf |
| Published | May 11, 2026 |
| Last Updated | May 12, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
advplyr / audiobookshelf
< 2.32.2