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CVE-2026-119549high7.1

Jellyfin through 12.4 SSRF via Gzip-Compressed Data URI in SVG Profile Images

Impact

Jellyfin through version 12.4 has a server-side request forgery vulnerability. Authenticated users can upload malicious profile images, which can then be used to fetch internal URLs or read local files.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

jellyfin · VulnCheck

jellyfin

1 range
VulnCheck version evidence

Package identity

pkg:github/jellyfin/jellyfin

Identity supplied by VulnCheck. Version matching requires compatible range evidence.

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → through 12.4

custom versions

unaffected

unknown

Other versions: unaffected

Original source description

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.

Inside the record

Evidence available

Package identity
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-119549

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-918 ↗

Server-Side Request Forgery (SSRF)

VulnCheck

Related →

Environment requirements

These conditions apply together as specified by the publisher. A matching product name alone does not establish exposure.

VulnCheck · platform conditions

Any condition may hold

Vulnerable product

cpe:2.3:a:jellyfin:jellyfin:*:*:*:*:*:*:*:*

Through (inclusive): 12.4

Original applicability statements
[
  {
    "nodes": [
      {
        "operator": "OR",
        "negate": false,
        "cpeMatch": [
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:a:jellyfin:jellyfin:*:*:*:*:*:*:*:*",
            "versionEndIncluding": "12.4"
          }
        ]
      }
    ]
  }
]
Contributing organizations · 2
VulnCheck

Assigning organization

2026-10-30
CISA-ADP

Additional data publisher

2026-10-30

What changed

Follow changes
  1. CVE · CVE-2026-119549

    Observed 2026-10-30T17:29:45.395Z · upstream updated 2026-10-30T16:11:21.944Z

    Prioritization updated

    before

    []

    after

    [
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2026-10-30T16:11:09.213684Z",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "none"
      },
      {
        "name": "Automatable",
        "value": "no"
      },
      {
        "name": "Technical Impact",
        "value": "partial"
      }
    ]
  }
]

Large field values are marked as truncated previews. Original source snapshots remain retained.

Showing up to 50 most recent observed changes.

References

6 sources
github.com/jellyfin/jellyfin/security/advisories/GHSA-cf3c-8m59-2vhx
relatedVulnCheck
github.com/jellyfin/jellyfin/blob/v12.4/src/Jellyfin.Drawing.Skia/SvgSecurityValidator.cs
technical-descriptionVulnCheck
github.com/jellyfin/jellyfin/blob/v12.4/Jellyfin.Api/Controllers/ImageController.cs
technical-descriptionVulnCheck
abraxaslabs.tech/research/jellyfin-svg-gzip
third-party-advisoryVulnCheck
github.com/jellyfin/jellyfin
productVulnCheck
www.vulncheck.com/advisories/jellyfin-through-12.4-ssrf-via-gzip-compressed-data-uri-in-svg-profile-images
third-party-advisoryVulnCheck