{"id":"CVE-2023-30626","aliases":["GHSA-9p5f-5x8v-x65m"],"url":"https://o3.security/vulnerability/CVE-2023-30626","summary":"Jellyfin vulnerable to directory traversal and file write causing arbitrary code execution","details":"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":"2023-04-24T20:06:39.400Z","modified":"2026-08-12T03:51:35.507322257Z","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":2,"affectedPackages":[{"ecosystem":"NuGet","name":"Jellyfin.Controller","fixedVersion":"10.8.10"}],"fix":{"url":"https://github.com/jellyfin/jellyfin/commit/82ad2633fdfb1c37a158057c7935f83e1129eda7","label":"jellyfin/jellyfin@82ad263"},"references":[{"type":"WEB","url":"https://github.com/jellyfin/jellyfin/blob/22d880662283980dec994cd7d35fe269613bfce3/Jellyfin.Api/Controllers/ClientLogController.cs#L44"},{"type":"WEB","url":"https://github.com/jellyfin/jellyfin/releases/tag/v10.8.10"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/30xxx/CVE-2023-30626.json"},{"type":"ADVISORY","url":"https://github.com/jellyfin/jellyfin-web/security/advisories/GHSA-89hp-h43h-r5pq"},{"type":"ADVISORY","url":"https://github.com/jellyfin/jellyfin/security/advisories/GHSA-9p5f-5x8v-x65m"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-30626"},{"type":"FIX","url":"https://github.com/jellyfin/jellyfin/commit/82ad2633fdfb1c37a158057c7935f83e1129eda7"},{"type":"FIX","url":"https://github.com/jellyfin/jellyfin/pull/5918"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:35.507322257Z"}}