[bobdivx]

🚨 Severity: CRITICAL
💡 Vulnerability: The mask_sensitive_env_key function in crates/runner/src/docker.rs was not properly masking environment variables that contained sensitive keywords (like AWS_SECRET_ACCESS_KEY) because it only checked for exact matches or suffix matches (e.g., ends with _SECRET). This left prefixed or infixed secrets exposed.
🎯 Impact: Variables containing critical security tokens or keys could be exposed via docker inspection API or logs.
🔧 Fix: Updated the function to use substring matching (upper.contains(n)) for sensitive keywords, ensuring any variable with SECRET, TOKEN, PASSWORD, etc., is masked regardless of its prefix or suffix. Also logged the vulnerability and learning in .jules/sentinel.md.
✅ Verification: Ran cargo test in crates/runner and all 5 tests passed successfully.

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PR created automatically by Jules for task 3312430554577362301 started by @bobdivx

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