Auth bypass in Jellyfin
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/jellyfin/jellyfin/blob/v12.4/Jellyfin.Api/Controllers/PlaylistsContr… (technical-description)
- github.com/jellyfin/jellyfin/security/advisories/GHSA-9x85-gx46-6522 (related, vendor-advisory)
- abraxaslabs.tech/research/jellyfin-playlist-itemids (third-party-advisory)
- github.com/jellyfin/jellyfin (product)
- www.vulncheck.com/advisories/jellyfin-through-12.4-information-disclosure-via-g… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-119550?
- CVE-2026-119550 is a low-severity vulnerability in Jellyfin, classified under Missing Authorization. CVSS score: 3.5/10. Published 2026-10-30.
- How severe is CVE-2026-119550?
- Low severity. CVSS v3 base score is 3.5 out of 10.