---
id: CVE-2026-119549
title: Jellyfin through 12.4 SSRF via Gzip-Compressed Data URI in SVG Profile Images
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 data URIs. Attackers can upload such
  profile images vi…
severity: high
cvss: 7.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H'
cvssSource: cna
cwe:
  - CWE-918
vendor: jellyfin
product: jellyfin
affected:
  - jellyfin <= 12.4
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-30T16:11:09.213684Z'
published: '2026-10-30'
updated: '2026-10-30'
sourceUpdated: '2026-10-30T16:11:21.944Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-119549'
references:
  - url: >-
      https://github.com/jellyfin/jellyfin/blob/v12.4/src/Jellyfin.Drawing.Skia/SvgSecurityValidator.cs#L169-L173
  - url: >-
      https://github.com/jellyfin/jellyfin/blob/v12.4/Jellyfin.Api/Controllers/ImageController.cs#L96
  - url: >-
      https://github.com/jellyfin/jellyfin/security/advisories/GHSA-cf3c-8m59-2vhx
    label: GitHub Security Advisory (GHSA-cf3c-8m59-2vhx)
  - url: 'https://abraxaslabs.tech/research/jellyfin-svg-gzip'
  - url: 'https://github.com/jellyfin/jellyfin'
  - url: >-
      https://www.vulncheck.com/advisories/jellyfin-through-12.4-ssrf-via-gzip-compressed-data-uri-in-svg-profile-images
    label: >-
      VulnCheck Advisory: Jellyfin through 12.4 SSRF via Gzip-Compressed Data
      URI in SVG Profile Images
tags:
  - cve.org
epss: 0.0044
epssPercentile: 0.38377
ingestedAt: '2026-11-05T16:24:31.061Z'
---

## Overview

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.

## Affected

- `jellyfin <= 12.4`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.