Jellysweep uses uncontrolled data in image cache API endpoint
Jellysweep is a cleanup tool for the Jellyfin media server. In versions 0.12.1 and below, /api/images/cache, used to download media posters from the server, accepted a URL parameter that was directly passed to the cache package, which downloaded the poster from this URL. This URL parameter can be used to make the Jelly…
Severity high: primary CNA CVSS 8.9 v4.0 (worst CNA-provided scenario) Not listed in this KEV snapshot. Forecast present in this snapshot.
Published 2025-11-06T21:46:58.994Z. Updated 2025-11-07T14:59:57.782Z.