Best Open-Source Container Security Tools in 2026
Have you ever tried to answer “Is this container safe to run?” If yes, then you know how tricky that question is. Securing containers is one of the toughest jobs in security, and hunting vulnerabilities across an estate of them gives security folks the same vibe as hunting in the fifth domain. Container vulnerabilities can live almost anywhere, from the image layers down to the kernel, and every week, a new base image, a new dependency, or a new manifest change opens a fresh gap.