PT-2026-133487
CVE-2026-119549
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Published
2026-10-30
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Updated
2026-10-31
Description by
CVSS 3.1
7.1
HighMetricsAV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
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.
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