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TI-2023-14442 Aliases CVE-2023-30626GHSA-9p5f-5x8v-x65m

Jellyfin vulnerable to directory traversal and file write causing arbitrary code execution

Priority MEDIUM 44CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.

Summary

Jellyfin is a free-software media system. Versions starting with 10.8.0 and prior to 10.8.10 and prior have a directory traversal vulnerability inside the `ClientLogController`, specifically `/ClientLog/Document`. When combined with a cross-site scripting vulnerability (CVE-2023-30627), this can result in file write and arbitrary code execution. Version 10.8.10 has a patch for this issue. There are no known workarounds.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01972 80th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Fixed jellyfin (jellyfin): 10.8.10Jellyfin.Controller (NuGet): 10.8.10

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
jellyfinjellyfin10.8.0 to before 10.8.1010.8.10Patch availableCNA
—Jellyfin.Controller (NuGet)10.8.0 to before 10.8.1010.8.10Patch availableGHSA-9p5f-5x8v-x65m
  • jellyfin Vendorjellyfin Affected 10.8.0 to before 10.8.10 Fixed in 10.8.10 Patch available CNA
  • Jellyfin.Controller (NuGet) Vendor— Affected 10.8.0 to before 10.8.10 Fixed in 10.8.10 Patch available GHSA-9p5f-5x8v-x65m

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:jellyfin:jellyfin:*:*:*:*:*:*:*:*10.8.0 to before 10.8.10Vulnerablejellyfin
  • cpe:2.3:a:jellyfin:jellyfin:*:*:*:*:*:*:*:* Versions 10.8.0 to before 10.8.10 Vulnerable ·jellyfin

Remediation

  • Fix · CNA jellyfin (jellyfin) Fixed in 10.8.10
  • Fix · GHSA-9p5f-5x8v-x65m Jellyfin.Controller (NuGet) Fixed in 10.8.10 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-30626
  2. 2026-10-03 Alias added: GHSA-9p5f-5x8v-x65m

References

Exploit 2

Patch 2

Advisory 2

Other 2

  • 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 18 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences