Web Account FFmpeg Shell Execution (PixelSmash CVE-2026-8461)

Ibrahim Saud@tektrix

•updated Jun 22, 2026•1•0•5

Detects web service accounts (e.g., www-data) unexpectedly spawning shells 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.