[Security] Fix HIGH vulnerability: yaml.github-actions.security.run-shell-injection.run-shell-injection

[orbisai0security]

Security Fix

This PR addresses a HIGH severity vulnerability detected by our security scanner.

Vulnerability Details

• Rule ID: yaml.github-actions.security.run-shell-injection.run-shell-injection
• File: .github/actions/dynamatrix/action.yml
• Description: Using variable interpolation ${{...}} with github context data in a run: step could allow an attacker to inject their own code into the runner. This would allow them to steal secrets and code. github context data can have arbitrary user input and should be treated as untrusted. Instead, use an intermediate environment variable with env: to store the data and use the environment variable in the run: script. Be sure to use double-quotes the environment variable, like this: "$ENVVAR".

Changes Made

This automated fix addresses the vulnerability by applying security best practices.

Files Modified

• .github/actions/dynamatrix/action.yml

Verification

This fix has been automatically verified through:

• ✅ Build verification
• ✅ Scanner re-scan
• ✅ LLM code review

🤖 This PR was automatically generated.