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// HackiAI found 3 issues in this PR
                  
function processUserData(userData) {
  // SECURITY: Potential SQL Injection
  const query = `SELECT * FROM users WHERE id = ${userData.id}`;
  
  // PERFORMANCE: Inefficient loop
  for (let i = 0; i < userData.items.length; i++) {
    for (let j = 0; j < userData.items.length; j++) {
      // O(n²) operation can be optimized
    }
  }
  
  // BEST PRACTICE: Missing error handling
  const result = JSON.parse(userData.config);
  return result;
}