Tools Beginner

Practical guide to validating CycloneDX SBOMs, common failure modes, and what to check before distribution.

By SBOM Generator Team
CycloneDX validator CycloneDX JSON CycloneDX XML SBOM validation CycloneDX errors

CycloneDX Validator

If you need to validate a CycloneDX SBOM quickly, use the SBOM Validator. It supports CycloneDX JSON and XML and provides detailed feedback when a file fails.

This page focuses on the practical CycloneDX questions teams ask most often: what counts as a valid document, which fields are commonly missing, and how to debug failures without guessing.

Start Here

Use the validator when you want to check:

  • whether a CycloneDX JSON or XML file is structurally valid
  • which CycloneDX version and serialization was detected
  • whether required fields are missing
  • whether your generated file is ready to distribute

Common CycloneDX Validation Failures

Missing top-level fields

Most CycloneDX documents should include:

  • bomFormat
  • specVersion
  • version

Incomplete metadata

Common warnings include:

  • missing serialNumber
  • missing metadata.timestamp
  • incomplete component metadata

Wrong format selected

If your file is CycloneDX but the validator is set to SPDX, the validator will tell you. In most cases, leave it on auto-detect.

Invalid package URLs

CycloneDX documents often include purl values. Those should follow valid Package URL syntax.
  1. generate the file with CycloneDX tooling
  2. validate it with the SBOM Validator
  3. fix hard failures first
  4. review warnings before distribution

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