Auth bypass in Jellyfin
CVE-2026-119551
Jellyfin through 12.4 contains an authorization bypass vulnerability in SuggestionsController.GetSuggestions that allows authenticated non-administrator users to bypass library and parental restrictions by omitting the userId parameter. Attackers can repeatedly call GET /Items/Suggestions without userId to enumerate restricted items, including IDs and server filesystem paths, and then stream them.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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/SuggestionsCon… (technical-description)
- github.com/jellyfin/jellyfin/security/advisories/GHSA-9x85-gx46-6522 (related, vendor-advisory)
- abraxaslabs.tech/research/jellyfin-suggestions-idor (third-party-advisory)
- github.com/jellyfin/jellyfin (product)
- www.vulncheck.com/advisories/jellyfin-through-12.4-authorization-bypass-via-get… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-119551?
- CVE-2026-119551 is a medium-severity vulnerability in Jellyfin, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-10-30.
- How severe is CVE-2026-119551?
- Medium severity. CVSS v3 base score is 6.5 out of 10.