CVE-2026-42883 — Audiobookshelf: Cross-library file exfiltration via unscoped bulk download endpoint
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 …
Published: 2026-05-11 · CVSS: 6.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7