Overview
ISO/IEC 18974:2023 - OpenChain security assurance specification defines the core requirements for a quality open source software (OSS) security assurance program. Published by ISO/IEC and maintained by the OpenChain Project, this specification is intended to build trust between organizations that exchange software solutions containing open source components. The standard focuses on the “what” and “why” of security assurance - especially checking OSS against publicly known vulnerabilities (CVE, GitHub/GitLab alerts, package manager alerts) - while remaining implementation‑agnostic so organizations of any size can adapt it.
Key topics and requirements
ISO/IEC 18974:2023 structures program requirements and the associated verification materials (records) required to demonstrate conformance. Major technical topics include:
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Program foundation (Clause 4.1)
- Written open source software security assurance policy, communicated and reviewed.
- Defined roles and responsibilities, required competencies, and evidence of training or experience.
- Participant awareness of policy, objectives and implications of non‑conformance.
- Clear program scope aligned with organizational risk policy and measurable metrics.
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Tasks and resourcing (Clause 4.2)
- Access to necessary tools, data and personnel.
- Ensuring the program is effectively resourced for continuous vulnerability monitoring and management.
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OSS content review and approval (Clause 4.3)
- Use and maintenance of a Software Bill of Materials (SBOM) - structured component records (name, version, origin, dependencies, timestamps).
- Processes for security assurance: identifying, tracking and responding to known and newly discovered vulnerabilities.
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Adherence and verification (Clause 4.4)
- Criteria for completeness of the program and rules governing certification duration.
- Concrete verification materials such as documented policies, role matrices, competency evidence, SBOMs and review records.
Applications - who should use it
- Software vendors, OEMs, system integrators and SaaS providers shipping products that include open source components.
- Security, compliance, product and supply‑chain teams implementing vulnerability triage, SBOM management and customer assurance.
- Procurement and legal functions seeking to establish trust with customers and partners through documented security assurance practices.
Benefits include consistent vulnerability handling, improved supply‑chain transparency, and an auditable set of verification materials for customer or partner agreements.
Related standards and references
- ISO/IEC 5230 (OpenChain / open source license compliance) - complementary process management standard.
- NTIA “Minimum Elements for an SBOM” - referenced for SBOM content and component records.
- SPDX (format for SBOMs) and public vulnerability repositories such as the CVE database are relevant implementation references.
Keywords: ISO/IEC 18974:2023, OpenChain security assurance specification, open source security, SBOM, CVE, software supply chain, security assurance program.