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    CVE-2023-30626

    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.

    Published:Apr 24, 2023
    Last Modified:Feb 12, 2025
    EPS:Apr 24, 2023
    EPSS Score:0.00779
    CVSS Score:8.8

    Affected Products

    Vendor
    Jellyfin
    Product
    Jellyfin

    Exploits

    https://github.com/jellyfin/jellyfin/blob/22d880662283980dec994cd7d35fe269613bfce3/Jellyfin.Api/Controllers/ClientLogController.cs#L44https://github.com/jellyfin/jellyfin/security/advisories/GHSA-9p5f-5x8v-x65mhttps://github.com/jellyfin/jellyfin/blob/22d880662283980dec994cd7d35fe269613bfce3/Jellyfin.Api/Controllers/ClientLogController.cs#L44https://github.com/jellyfin/jellyfin/security/advisories/GHSA-9p5f-5x8v-x65m

    Related CVEs

    CVE-2026-49220 (CVSS 5.7) — Jellyfin is an open source self hosted media server. Prior to 10.11.9, a potential XSS attack exists in Jellyf…
    CVE-2026-48793 (CVSS 8.8) — Jellyfin is an open source self hosted media server. Prior to 10.11.10, a potential FFmpeg argument injection …
    CVE-2026-49246 (CVSS 1.7) — Jellyfin is an open source self hosted media server. Prior to 10.11.10, a specifically crafted MKV file contai…
    CVE-2026-49247 (CVSS 8.8) — Jellyfin is an open source self hosted media server. From 10.9.0 until 10.11.10, the POST /ClientLog/Document …
    CVE-2026-35034 (CVSS 6.5) — Jellyfin is an open source self hosted media server. Versions prior to 10.11.7 contain a denial of service vul…
    CVE-2026-35033 (CVSS 9.3) — Jellyfin is an open source self hosted media server. Versions prior to 10.11.7 contain an unauthenticated arbi…
    CVE-2026-35032 (CVSS 8.6) — Jellyfin is an open source self hosted media server. Versions prior to 10.11.7 contain a vulnerability chain i…
    CVE-2026-35031 (CVSS 9.9) — Jellyfin is an open source self hosted media server. Versions prior to 10.11.7 contain a vulnerability chain i…
    CVE-2026-31852 (CVSS 10) — Jellyfin is an open-source media system. The code-quality.yml GitHub Actions workflow in jellyfin/jellyfin-ios…
    CVE-2025-31499 (CVSS 7.6) — Jellyfin is an open source self hosted media server. Versions before 10.10.7 are vulnerable to argument inject…

    References

    https://github.com/jellyfin/jellyfin-web/security/advisories/GHSA-89hp-h43h-r5pq
    https://github.com/jellyfin/jellyfin/blob/22d880662283980dec994cd7d35fe269613bfce3/Jellyfin.Api/Controllers/ClientLogController.cs#L44
    https://github.com/jellyfin/jellyfin/commit/82ad2633fdfb1c37a158057c7935f83e1129eda7
    https://github.com/jellyfin/jellyfin/pull/5918
    https://github.com/jellyfin/jellyfin/releases/tag/v10.8.10
    https://github.com/jellyfin/jellyfin/security/advisories/GHSA-9p5f-5x8v-x65m
    https://github.com/jellyfin/jellyfin-web/security/advisories/GHSA-89hp-h43h-r5pq
    https://github.com/jellyfin/jellyfin/blob/22d880662283980dec994cd7d35fe269613bfce3/Jellyfin.Api/Controllers/ClientLogController.cs#L44
    https://github.com/jellyfin/jellyfin/commit/82ad2633fdfb1c37a158057c7935f83e1129eda7
    https://github.com/jellyfin/jellyfin/pull/5918
    https://github.com/jellyfin/jellyfin/releases/tag/v10.8.10
    https://github.com/jellyfin/jellyfin/security/advisories/GHSA-9p5f-5x8v-x65m

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High