CVE-2026-42886

Audiobookshelf is a self-hosted audiobook and podcast server. Prior to 2.32.2, the POST /api/backups/upload endpoint decompresses the details entry from an uploaded .audiobookshelf ZIP file entirely into memory using zip.entryData, with no limit on the decompressed size. The upload middleware als...

CVE-2026-42886 Audiobookshelf: Memory amplification DoS via oversized compressed details entry in backup upload

Audiobookshelf is a self-hosted audiobook and podcast server. Prior to 2.32.2, the POST /api/backups/upload endpoint decompresses the details entry from an uploaded .audiobookshelf ZIP file entirely into memory using zip.entryData, with no limit on the decompressed size. The upload middleware als...

CVE-2026-42886

CVE-2026-42886 affects Audiobookshelf before 2.32.2. The vulnerability lies in POST /api/backups/upload, which decompresses the details entry from an uploaded .audiobookshelf ZIP entirely into memory (zip.entryData()) with no decompressed size limit and no file size limit in the middleware. An ad...

CVE-2026-42886 Audiobookshelf: Memory amplification DoS via oversized compressed details entry in backup upload

Audiobookshelf is a self-hosted audiobook and podcast server. Prior to 2.32.2, the POST /api/backups/upload endpoint decompresses the details entry from an uploaded .audiobookshelf ZIP file entirely into memory using zip.entryData, with no limit on the decompressed size. The upload middleware als...

PT-2026-39751

Audiobookshelf is a self-hosted audiobook and podcast server. Prior to 2.32.2, the POST /api/backups/upload endpoint decompresses the details entry from an uploaded .audiobookshelf ZIP file entirely into memory using zip.entryData, with no limit on the decompressed size. The upload middleware als...