Add transitive dependencies with vulnerabilities to demonstrate GitHub dependency graph ellipsis menu

[Copilot]

Problem

The GitHub dependency graph UI displays an ellipsis menu ("...") next to packages when there are vulnerabilities, multiple dependency paths, or additional security information available. This repository was missing sufficient vulnerable dependencies with transitive paths to trigger this UI feature, making it difficult to demonstrate how GitHub's dependency scanning visualizes complex dependency relationships.

Solution

Added three new vulnerable Apache Commons dependencies to create a richer dependency graph with multiple vulnerable packages and transitive dependencies:

New Dependencies

1. commons-fileupload:1.3.1 - Contains CVE-2016-1000031 (arbitrary file upload vulnerability)

   • Brings in transitive dependency: commons-io:2.2

2. commons-codec:1.6 - Older version with potential security issues

   • Direct dependency for additional vulnerability coverage

3. commons-dbcp:1.4 - Database connection pooling library

   • Brings in transitive dependency: commons-pool:1.5.4

Current Dependency Graph

The repository now demonstrates:

• 6+ vulnerable packages across the dependency tree
• Multiple dependency paths to vulnerable packages (e.g., commons-collections appears via direct, commons-beanutils, and commons-digester paths)
• Transitive vulnerability chains showing how vulnerabilities cascade through dependencies
• Complex relationships that trigger GitHub's ellipsis menu UI for detailed vulnerability information

Documentation Updates

• README.md: Expanded vulnerable dependencies section with detailed descriptions of each CVE and transitive dependency
• DEPENDENCY_ANALYSIS.md:
  • Added sections documenting each new vulnerable package and its dependency path
  • Explained the ellipsis menu functionality (vulnerability details, remediation suggestions, dependency paths)
  • Updated example dependency tree output to reflect all packages

Testing

✅ Build successful: mvn clean compile
✅ Tests pass: mvn test
✅ Package verification: mvn clean verify
✅ Dependency tree verified to show all vulnerable packages and transitive dependencies

Result

GitHub's Security/Dependency Graph UI will now display the ellipsis menu next to vulnerable packages, providing access to:

• Detailed vulnerability information (CVEs)
• Suggested remediation steps
• Full dependency path visualization
• Transitive dependency details

This enhancement makes the repository a more comprehensive demonstration of how GitHub's dependency scanning tools detect and visualize vulnerabilities across complex dependency graphs.

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⚠️ Note: This application intentionally contains security vulnerabilities for educational and demonstration purposes only. It should never be deployed in a production environment.

Original prompt

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This section details on the original issue you should resolve

<issue_title>How do I get the ellipse to show to the right of of my packages</issue_title>
<issue_description>

It looks like I need to add some transitive dependencies that also have vulnerabilities. Can you help with that?</issue_description>

Comments on the Issue (you are @copilot in this section)

Fixes #6

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