Clair vs oscap-docker: 2026 Comparison
Clair is a free container security tool. oscap-docker is a free container security tool. Compare features, ratings, integrations, and community reviews side by side to find the best container security fit for your security stack.
CST VerdictBased on our analysis of available product data, here is our conclusion:
Development teams shipping containers through CI/CD pipelines should start with Clair because it catches known vulnerabilities at build time before they reach production, and the free, open source model means zero licensing friction for catching this at scale. With 10,942 GitHub stars and deep integration into container registries via API indexing, Clair is battle-tested in high-volume scanning workflows. Skip it if you need runtime threat detection or vulnerability prioritization based on exploitability; Clair is static analysis only, which means it flags everything in the database regardless of whether the vulnerability actually matters for your application.
Teams running compliance-heavy Docker deployments on tight budgets should reach for oscap-docker; it maps directly to NIST CSF Govern and DISA STIGs without licensing friction. The tool handles both image scanning and live container assessment using battle-tested OpenSCAP frameworks, giving you policy enforcement that actually matches your compliance checklist. Skip this if you need runtime threat detection or integration with a broader container platform; oscap-docker does compliance auditing well and vulnerability scanning acceptably, but it won't catch exploit attempts or container escapes in production.
