Server-side Request Forgery (SSRF) Affecting jellyfin.common package, versions [,10.11.7)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept

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  • Snyk IDSNYK-DOTNET-JELLYFINCOMMON-16068528
  • published15 Apr 2026
  • disclosed14 Apr 2026
  • creditPiotr Niełacny, Gerhard Botha

Introduced: 14 Apr 2026

NewCVE-2026-35032  (opens in a new tab)
CWE-918  (opens in a new tab)

How to fix?

Upgrade Jellyfin.Common to version 10.11.7 or higher.

Overview

Jellyfin.Common is an a Free Software Media System that puts you in control of managing and streaming your media.

Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) via the POST /LiveTv/TunerHosts endpoint when the tuner URL is not properly validated. An attacker can read arbitrary local files and perform unauthorized requests to internal or external systems by submitting a crafted M3U tuner configuration. This can lead to exfiltration of sensitive data, such as database files containing admin session tokens, and escalation of privileges. This is only exploitable if the user has the EnableLiveTvManagement permission, which defaults to true for all new users.

CVSS Base Scores

version 4.0
version 3.1