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Jellyfin playlist endpoint exposes hidden library items

Priority LOW 23CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

Jellyfin through 12.4 contains an information disclosure flaw in PlaylistsController.GetPlaylist (CWE-862, missing authorization). An authenticated user can request public or shared playlists to read item IDs of library items they cannot access. Restricted or parental-controlled users can use these IDs to stream hidden media.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00222 12th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
jellyfinjellyfinup to 12.4—No fix listedCNA
  • jellyfin Vendorjellyfin Affected up to 12.4 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:jellyfin:jellyfin:*:*:*:*:*:*:*:*——jellyfin
  • cpe:2.3:a:jellyfin:jellyfin:*:*:*:*:*:*:*:* Versions — — ·jellyfin

Remediation

The sources list no fixed version for jellyfin.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    jellyfin — GitHub Security Advisory (GHSA-9x85-gx46-6522)

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-83015 Authorization bypass in Jellyfin lets users list restricted itemsPriority LOW 31

Timeline

  1. 2026-10-30 Threatist record created from CVE-2026-119550
  2. 2026-10-30 Alias added: GHSA-736m-vhpm-7799
  3. 2026-11-04 CISA SSVC decision points changed

References

  • TI-2021-04500 Unauthenticated Arbitrary File Access in Jellyfin CVSS 3.1HIGH 7.7
  • TI-2023-26761 Argument Injection in FFmpeg codec parameters in Jellyfin CVSS 3.1HIGH 8.8
  • TI-2021-10203 Unauthenticated GET requests through Remote Image endpoints CVSS 3.1MEDIUM 5.8
  • TI-2023-09464 In Jellyfin 10.8.x through 10.8.3, the name of a playlist is vulnerable to stored XSS. CVSS 3.1MEDIUM 5.4
  • TI-2023-09463 In Jellyfin 10.8.x through 10.8.3, the name of a collection is vulnerable to stored XSS. CVSS 3.1MEDIUM 5.4
  • TI-2026-24405 Jellyfin Possible Organization/Secret Compromise from dangerous CI implementation CVSS 3.1CRITICAL 10.0
See all 25 →

Sources