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@CycloneDX

CycloneDX BOM Standard

CycloneDX is a modern standard for the software supply chain. SBOM, SaaSBOM, CBOM, OBOM, VEX, and more. CycloneDX is a OWASP project ratified as ECMA-424

Welcome to the CycloneDX Community

CycloneDX logo

OWASP CycloneDX is a full-stack Bill of Materials (BOM) standard that provides advanced supply chain capabilities for cyber risk reduction. The specification supports:

  • Software Bill of Materials (SBOM)
  • Software-as-a-Service Bill of Materials (SaaSBOM)
  • Hardware Bill of Materials (HBOM)
  • Machine Learning Bill of Materials (ML-BOM)
  • Cryptography Bill of Materials (CBOM)
  • Manufacturing Bill of Materials (MBOM)
  • Operations Bill of Materials (OBOM)
  • Vulnerability Disclosure Reports (VDR)
  • Vulnerability Exploitability eXchange (VEX)
  • CycloneDX Attestations (CDXA)

The CycloneDX project provides standards in XML, JSON, and Protocol Buffers, as well as a large collection of official and community supported tools that create or interoperate with the standard.

The project's website has many documented use cases and examples that provide a springboard to SBOM adoption.

The project operates as a meritocracy whose guiding principles reinforce its risk-based approach to standards development. The project encourages community participation in the development of the standard and supporting tools.

Background

Modern software is assembled using third-party and open source components. They are glued together in complex and unique ways and integrated with original code to achieve the desired functionality. An accurate inventory of all components enables organizations to identify risk, allows for greater transparency, and enables rapid impact analysis.

CycloneDX was created for this purpose.

Strategic direction and maintenance of the specification is managed by the CycloneDX Core Working Group, is backed by the OWASP Foundation, and is supported by the global information security community.

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  1. specification specification Public

    OWASP CycloneDX is a full-stack Bill of Materials (BOM) standard that provides advanced supply chain capabilities for cyber risk reduction. SBOM, SaaSBOM, HBOM, AI/ML-BOM, CBOM, OBOM, MBOM, VDR, an…

    XSLT 556 93

  2. cyclonedx-python cyclonedx-python Public

    CycloneDX Software Bill of Materials (SBOM) generator for Python projects and environments

    Python 393 102

  3. cyclonedx-maven-plugin cyclonedx-maven-plugin Public

    Creates CycloneDX Software Bill of Materials (SBOM) from Maven projects

    Java 387 109

  4. cyclonedx-cli cyclonedx-cli Public

    CycloneDX CLI tool for SBOM analysis, merging, diffs and format conversions.

    C# 547 83

  5. bom-examples bom-examples Public

    A repository with examples of CycloneDX BOMs (SBOM, SaaSBOM, OBOM, VEX, etc)

    240 83

  6. cyclonedx-node-module cyclonedx-node-module Public

    creates CycloneDX Software-Bill-of-Materials (SBOM) from Node.js-based projects

    145 39

Repositories

Showing 10 of 70 repositories
  • specification Public

    OWASP CycloneDX is a full-stack Bill of Materials (BOM) standard that provides advanced supply chain capabilities for cyber risk reduction. SBOM, SaaSBOM, HBOM, AI/ML-BOM, CBOM, OBOM, MBOM, VDR, and VEX

    CycloneDX/specification's past year of commit activity
    XSLT 556 Apache-2.0 93 182 (7 issues need help) 48 Updated Oct 2, 2026
  • spdx-licenses Public

    Unofficial SPDX license IDs as used by the CycloneDX specification

    CycloneDX/spdx-licenses's past year of commit activity
    0 Apache-2.0 0 0 0 Updated Oct 2, 2026
  • transparency-exchange-api Public

    A standard API specification for exchanging supply chain artifacts and intelligence

    CycloneDX/transparency-exchange-api's past year of commit activity
    Shell 117 Apache-2.0 24 58 10 Updated Oct 2, 2026
  • cyclonedx-gradle-plugin Public

    Creates CycloneDX Software Bill of Materials (SBOM) from Gradle projects

    CycloneDX/cyclonedx-gradle-plugin's past year of commit activity
    Java 241 Apache-2.0 102 70 (3 issues need help) 14 Updated Oct 2, 2026
  • tool-center Public

    Data and schema powering the worlds largest collection of SBOM/xBOM products, projects, and services

    CycloneDX/tool-center's past year of commit activity
    HTML 23 CC-BY-SA-4.0 80 3 11 Updated Oct 1, 2026
  • cyclonedx-core-java Public

    CycloneDX SBOM Model and Utils for Creating and Validating BOMs

    CycloneDX/cyclonedx-core-java's past year of commit activity
    Java 121 Apache-2.0 92 41 (2 issues need help) 19 Updated Oct 1, 2026
  • cyclonedx-node-yarn Public

    Create CycloneDX Software Bill of Materials (SBOM) from Node.js Yarn projects.

    CycloneDX/cyclonedx-node-yarn's past year of commit activity
    JavaScript 27 Apache-2.0 11 13 (10 issues need help) 20 Updated Oct 1, 2026
  • cyclonedx-property-taxonomy Public

    A taxonomy of all official CycloneDX property namespaces and names

    CycloneDX/cyclonedx-property-taxonomy's past year of commit activity
    Ruby 26 Apache-2.0 48 27 (5 issues need help) 8 Updated Sep 30, 2026
  • cyclonedx-maven-plugin Public

    Creates CycloneDX Software Bill of Materials (SBOM) from Maven projects

    CycloneDX/cyclonedx-maven-plugin's past year of commit activity
    Java 387 Apache-2.0 109 87 (6 issues need help) 15 Updated Sep 30, 2026
  • cyclonedx-python Public

    CycloneDX Software Bill of Materials (SBOM) generator for Python projects and environments

    CycloneDX/cyclonedx-python's past year of commit activity
    Python 393 Apache-2.0 102 20 (12 issues need help) 13 Updated Sep 29, 2026