@hailbytes/sbom-diff

Diff two CycloneDX or SPDX SBOMs and produce human-readable change reports. Highlights added, removed, upgraded dependencies and new CVEs.

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What it does

Compare two CycloneDX or SPDX SBOM files and instantly see what changed: added packages, removed packages, version upgrades, and newly introduced CVEs. Output as human-readable text, JSON, or Markdown — perfect for CI/CD gates and audit trails.

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Install

npm install @hailbytes/sbom-diff
# or use directly via npx
npx @hailbytes/sbom-diff old.json new.json

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Quick Start

CLI

# Compare two SBOMs and print a human-readable report
npx @hailbytes/sbom-diff old.json new.json

# Output as JSON
npx @hailbytes/sbom-diff old.json new.json --format json

# Output as Markdown (great for PR comments)
npx @hailbytes/sbom-diff old.json new.json --format markdown

Programmatic

import { diff } from '@hailbytes/sbom-diff';

const report = await diff('old.cdx.json', 'new.cdx.json');

console.log(report.added);    // Component[] — newly added packages
console.log(report.removed);  // Component[] — packages removed
console.log(report.upgraded); // { from: Component, to: Component }[]
console.log(report.newCVEs);  // CVE[] — vulnerabilities in new packages

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Who Is This For

Security engineers, DevSecOps teams, and supply-chain risk analysts who need to track dependency changes between software releases, detect newly introduced CVEs, and produce auditable SBOM diff reports for compliance evidence.

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See Also

• @hailbytes/caiq-lite — CSA CAIQ-Lite schema and validator
• @hailbytes/asm-scope-parser — Attack surface scope parsing
• HailBytes

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Part of the HailBytes open-source security toolkit.