CRA Compliance for Python Microservices
Specific engineering requirements and security-by-design principles to make Python Microservices compliant with the Cyber Resilience Act.
Core Definition
Building Python Microservices under the Cyber Resilience Act requires strict adherence to secure-by-default and secure-by-design principles. Python Microservices are considered 'products with digital elements' or core components of them, meaning you are legally required to manage their vulnerabilities, patch them effectively for up to 5 years, and maintain complete component transparency via an SBOM.
Key Compliance Steps for Python Microservices
- Generate accurate SBOMs: Use tools specific to Python Microservices to generate CycloneDX or SPDX Software Bill of Materials in your CI/CD pipeline.
- Enforce 'Secure by Default': Ensure Python Microservices ship with the most restrictive permissions, no default passwords, and encryption enabled by default.
- Implement Over-The-Air (OTA) Updates: Guarantee that patches can be successfully deployed to Python Microservices seamlessly to fix critical vulnerabilities.
- Manage Third-Party Risk: Track open-source dependencies within your Python Microservices to prevent supply chain compromise.
How This Plays Out in Practice
Generate SBOMs with `cyclonedx-py` or `pip-audit` per-service, since a single monorepo-wide scan often misses service-specific dependency drift.
What to Watch For
Insecure deserialization (pickle) and unpinned dependencies pulled from PyPI without hash verification are recurring findings in Python-based services.
Common Questions
What must an SBOM cover?
Annex I Part II, point (1) requires identifying and documenting vulnerabilities and components, including by drawing up a software bill of materials in a commonly used and machine-readable format covering at the very least the top-level dependencies of the product.
Is a one-off dependency scan enough?
Annex I Part II, point (3) requires applying effective and regular tests and reviews of the security of the product, so a single scan at release does not by itself match the wording.
Assess Your CRA Readiness
Evaluate your product's Cyber Resilience Act readiness using our interactive tool. Find exactly which of the 22 security requirements apply directly to Python Microservices.