FFmpeg Just Shipped 8.1.2 for a Bug That Turns an Uploaded Video Into Code Execution. You Don't Call FFmpeg — Your Thumbnail Job Does.
PixelSmash (CVE-2026-8461) is a heap overflow in FFmpeg's MagicYUV decoder that fires on automatic thumbnailing and metadata scans — no one opens the file. If your app takes uploads or you run a media server, the vulnerable code is already in your path. Upgrade to 8.1.2.