CVE-2026-119550

Jellyfin through 12.4 contains an information disclosure vulnerability in PlaylistsController.GetPlaylist that allows authenticated users to read hidden item IDs by requesting public or shared playlists. Restricted or parental-controlled users can obtain GUIDs of inaccessible library items from unfiltered playlist ItemIds and then stream that hidden media.

Referanslar

• https://abraxaslabs.tech/research/jellyfin-playlist-itemids
• https://github.com/jellyfin/jellyfin
• https://github.com/jellyfin/jellyfin/blob/v12.4/Jellyfin.Api/Controllers/PlaylistsController.cs#L177-L181
• https://github.com/jellyfin/jellyfin/security/advisories/GHSA-9x85-gx46-6522
• https://www.vulncheck.com/advisories/jellyfin-through-12.4-information-disclosure-via-get-playlists-playlistid