IP Spoofing Vulnerability in Jellyfin Media Server

CVE-2025-32012

What is CVE-2025-32012?

The Jellyfin Media Server contains a vulnerability where the /System/Restart endpoint can be exploited by unauthenticated attackers. Despite being intended for administrative use, the endpoint's method of identifying the source IP address allows an attacker within the same local network to spoof their IP. This exploit enables repeated unauthorized server restarts, resulting in a denial-of-service condition. Moreover, if leveraged with remote code execution techniques, it poses significant security risks by bypassing the intended administrative controls. Users are advised to upgrade to version 10.10.7, which addresses this issue.

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