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Cyber Security Academy · Lesson

Software Composition Analysis (SCA)

Scan dependencies for known CVEs with OWASP Dependency-Check, Snyk, or GitHub Dependabot.

Software Composition Analysis (SCA) is a free Cyber Security Academy lesson on CoddyKit — lesson 2 of 4. You can read the complete lesson below for free — then practise it hands-on in the browser with a built-in code editor and a 24/7 AI tutor. It is part of the Cyber Security Academy learning path, one of 4 lessons in the course, and your progress syncs across the web and the CoddyKit app.

What is SCA?

Software Composition Analysis (SCA) identifies open-source dependencies in your project and checks them against vulnerability databases (NVD, CVE, GitHub Advisory). It also flags license compliance issues.

Why Third-Party Dependencies Are Risky

Modern applications use hundreds of open-source libraries. A single vulnerable library can expose the entire application. The 2021 Log4Shell vulnerability (CVE-2021-44228) affected millions of Java applications because of one widely-used logging library.

SCA Tools

Popular SCA tools:

# npm audit (Node.js):
npm audit
npm audit fix

# pip-audit (Python):
pip-audit

# OWASP Dependency-Check:
dependency-check.sh --project myapp --scan ./

# Snyk:
snyk test
snyk monitor

Dependabot and Renovate

Automated dependency update tools:

  • Dependabot (GitHub) — automatically opens PRs to update vulnerable dependencies
  • Renovate — more configurable, supports more registries

Enable these in every repository — they reduce the manual burden of tracking dependency updates.

Understanding CVE Severity

Not every vulnerability in a dependency is exploitable in your context. Evaluate:

  • Is the vulnerable code path reachable in your usage?
  • Does your application expose the functionality?
  • Does a WAF or other control mitigate it?

CVSS score is a starting point — context determines actual risk.

Transitive Dependencies

Direct dependencies have their own dependencies (transitive). A vulnerability in a library you've never heard of may still affect you. SCA tools map the full dependency tree. Run npm ls or pip show -r requirements.txt to inspect the tree.

npm ls --all | grep "vulnerable-pkg"
pip show requests | grep Requires

Software Bill of Materials (SBOM)

An SBOM is a formal inventory of all components in a software product. Executive Order 14028 (US) mandates SBOMs for software sold to the US government. Formats: SPDX, CycloneDX.

# Generate SBOM with syft:
syft . -o cyclonedx-json > sbom.json
# Scan SBOM for vulnerabilities:
grype sbom:./sbom.json

License Compliance

SCA also checks licenses. GPL-licensed dependencies in commercial software may require open-sourcing your code. LGPL, MIT, Apache 2.0 are generally permissive. Legal teams need visibility into dependency licenses — SCA provides this automatically.

Supply Chain Attacks

Attackers inject malicious code into popular open-source packages:

  • Typosquatting: reqeusts instead of requests
  • Compromised maintainer accounts (SolarWinds-style)
  • Dependency confusion: private package names leaked to public registry

SCA with integrity verification (checksums, lock files) reduces this risk.

Lock Files

Lock files (package-lock.json, Pipfile.lock) pin exact versions and verify checksums. Commit lock files to source control. Never use npm install --legacy-peer-deps to skip lock file checks in production builds.

SCA in the CI/CD Pipeline

Integrate SCA as a mandatory CI gate:

# GitHub Actions example:
- name: Run npm audit
  run: npm audit --audit-level=high
# Fail build on HIGH/CRITICAL findings
# Use --audit-level=moderate for stricter posture

Quick Check: SCA

What is the primary purpose of Software Composition Analysis (SCA)?

Lesson Recap

SCA scans project dependencies for known CVEs, license issues, and supply chain risks. Critical because of transitive dependencies — a vulnerability in a library-of-a-library still affects you. Enable Dependabot/Renovate for automated updates. Generate SBOMs (SPDX/CycloneDX) for supply chain visibility. Lock files pin versions and verify checksums. Integrate as a CI gate with severity thresholds.

Frequently asked questions

Is the “Software Composition Analysis (SCA)” lesson free?

Yes — the full text of “Software Composition Analysis (SCA)” is free to read here on the web, and the Cyber Security Academy course includes 4 lessons in total. To practise it interactively (a built-in code editor and a 24/7 AI tutor) and unlock the rest of the Cyber Security Academy course, upgrade to CoddyKit PRO.

What will I learn in “Software Composition Analysis (SCA)”?

Scan dependencies for known CVEs with OWASP Dependency-Check, Snyk, or GitHub Dependabot. You practise Cyber Security Academy with hands-on code you run directly in the browser, and a 24/7 AI tutor answers your questions as you work through the lesson.

Do I need any experience to start Cyber Security Academy?

No prior experience is required. Cyber Security Academy on CoddyKit is structured for beginners through advanced learners; this is — lesson 2 of 4, so you can start here or from the beginning and move at your own pace.

How long does the “Software Composition Analysis (SCA)” lesson take?

Most CoddyKit lessons take about 5–10 minutes. Each one is bite-sized and interactive, so you make steady progress and pick up exactly where you left off across the web and the app.

Can I write and run code in this Cyber Security Academy lesson?

Yes. Every Cyber Security Academy lesson includes a built-in code editor, so you write and run real code right in your browser and get instant AI feedback — no local setup required.

All lessons in this course

  1. SAST and DAST in CI/CD Pipelines
  2. Software Composition Analysis (SCA)
  3. Secrets Scanning and Hardcoded Credentials
  4. Security Champions and Threat Modeling
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