{"id":"CVE-2026-119549","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-119549","summary":"Jellyfin through 12.4 contains a server-side request forgery vulnerability that lets authenticated users bypass SvgSecurityValidator by embedding gzip-compressed SVG in non-SVG image…","details":"Jellyfin through 12.4 contains a server-side request forgery vulnerability that lets authenticated users bypass SvgSecurityValidator by embedding gzip-compressed SVG in non-SVG image data URIs. Attackers can upload such profile images via POST /UserImage, then trigger unauthenticated rendering via GET /UserImage to fetch internal URLs, read local image files, or exhaust memory.","published":"2026-10-30T12:16:41.330","modified":"2026-10-30T19:14:38.697","cvss":{"score":7.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://abraxaslabs.tech/research/jellyfin-svg-gzip"},{"type":"WEB","url":"https://github.com/jellyfin/jellyfin"},{"type":"WEB","url":"https://github.com/jellyfin/jellyfin/blob/v12.4/Jellyfin.Api/Controllers/ImageController.cs#L96"},{"type":"WEB","url":"https://github.com/jellyfin/jellyfin/blob/v12.4/src/Jellyfin.Drawing.Skia/SvgSecurityValidator.cs#L169-L173"},{"type":"WEB","url":"https://github.com/jellyfin/jellyfin/security/advisories/GHSA-cf3c-8m59-2vhx"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/jellyfin-through-12.4-ssrf-via-gzip-compressed-data-uri-in-svg-profile-images"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-10-30T19:14:38.697"}}