Web Account FFmpeg Shell Execution

Ibrahim Saud@tektrix

•updated Jun 22, 2026•0•0•6

Detects web service accounts (e.g., www-data) unexpectedly spawning shells or scripting interpreters from FFmpeg. This behavior is strongly indicative of remote code execution (RCE) via the PixelSmash vulnerability, specifically targeting automated preview generation in platforms like Nextcloud.