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Vulnerability Scanning for Container Images
4.1Why Container Scanning Is Non-NegotiableContainer images accumulate vulnerabilities through three vectors: base images ship with OS-level CVEs, installed packages introduce…4.2The Three Scanning VectorsA comprehensive scanning strategy covers all three. Most teams start with image scanning and add configuration scanning as they mature.4.3Trivy: The Swiss Army KnifeTrivy (by Aqua Security) is the most versatile open-source scanner. It handles images, filesystems, Git repositories, and Kubernetes…4.4Grype: Anchore's Vulnerability ScannerGrype is another popular scanner from the Anchore ecosystem. It pairs well with Syft (Anchore's SBOM generator):4.5Snyk Container: Commercial with Fix RecommendationsSnyk differentiates itself by providing fix recommendations -- it tells you which base image upgrade or package version would resolve the…4.6Registry Scanning: Continuous ProtectionBuild-time scanning is necessary but not sufficient. New CVEs are disclosed daily, and an image that was clean yesterday may be vulnerable…4.7Building a Scanning PipelineThe recommended approach layers scans at multiple points: