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oscap-docker is a free container security tool. Chainguard Zero-CVE Images is a commercial container security tool by Chainguard. 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 NIST CSF 2.0 coverage, core features, company size fit, deployment model, here is our conclusion:
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.
Teams shipping containers at scale who need CVEs eliminated before they reach production should start with Chainguard Zero-CVE Images. Daily rebuilds and a 7-day SLA for critical patches mean vulnerabilities don't sit in your supply chain waiting for your next manual rebuild cycle; the 1,800-plus pre-built images and SBOM generation cover most common bases without custom hardening work. Skip this if you're standardized on a single base image and patch infrequently, or if you need runtime detection alongside image provenance,Chainguard addresses supply chain risk and asset inventory (NIST GV.SC and ID.AM), not what happens after containers start.
A container compliance and vulnerability assessment tool that uses OpenSCAP to scan Docker images and running containers for security vulnerabilities and compliance violations.
Zero-CVE container and VM images with daily rebuilds and SBOMs
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Common questions about comparing oscap-docker vs Chainguard Zero-CVE Images for your container security needs.
oscap-docker: A container compliance and vulnerability assessment tool that uses OpenSCAP to scan Docker images and running containers for security vulnerabilities and compliance violations..
Chainguard Zero-CVE Images: Zero-CVE container and VM images with daily rebuilds and SBOMs. built by Chainguard. headquartered in United States. Core capabilities include Zero-CVE container and VM images, Daily rebuilds from source, 7-day SLA for critical CVE remediation..
Both serve the Container Security market but differ in approach, feature depth, and target audience.
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