CVE-2026-119551
Jellyfin through 12.4 Authorization Bypass via GET /Items/Suggestions
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| jellyfin jellyfin jellyfin/jellyfin
github |
≥ 0; ≤ 12.4 (affected, custom)
Other versions: unaffected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 7.1 high |
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | CNA: VulnCheck |
| 3.1 / 6.5 medium |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | CNA: VulnCheck |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://github.com/jellyfin/jellyfin/blob/v12.4/Jellyfin.Api/Controllers/SuggestionsController.cs#L70-L95CNA: VulnCheck · technical-description
- https://github.com/jellyfin/jellyfin/security/advisories/GHSA-9x85-gx46-6522CNA: VulnCheck · related, vendor-advisory
- https://abraxaslabs.tech/research/jellyfin-suggestions-idorCNA: VulnCheck · third-party-advisory
- https://github.com/jellyfin/jellyfinCNA: VulnCheck · product
- https://www.vulncheck.com/advisories/jellyfin-through-12.4-authorization-bypass-via-get-items-suggestionsCNA: VulnCheck · third-party-advisory
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