Gate a container image deployment on Grype severity thresholds against a pre-generated SBOM
domain: anchore.com/grype · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Install Grype via the official install script
Generate an SBOM with Syft: `syft packages <image>:<tag> -o cyclonedx-json > sbom.json`
Run Grype against the SBOM: `grype sbom:sbom.json --fail-on critical` — Grype exits non-zero if any vulnerabilities at or above the threshold are found
Output results in JSON for programmatic processing: `grype sbom:sbom.json -o json > grype-report.json`
Maintain a `.grype.yaml` ignore list for accepted-risk CVEs with documented justification and expiration dates
Known gotchas
Grype's `--fail-on` threshold applies to the highest severity found; it does not support failing on counts (e.g., more than 5 HIGH findings) — combine with `jq` to implement count-based thresholds
Grype's database is updated independently of the Grype binary; always run `grype db update` in CI before scanning to use current vulnerability data
SBOM-based scanning can miss vulnerabilities in OS packages if the SBOM was generated with a tool that does not enumerate OS-level packages; validate SBOM coverage before relying on Grype-only gating
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