GHSA-j5w5-568x-rq53: Evolver: Command Injection via `execSync` in `_extractLLM()` function allows Remote Code Execution

A command injection vulnerability in the _extractLLM() function allows attackers to execute arbitrary shell commands on the server. The function constructs a curl command using string concatenation and passes it to execSync() without proper sanitization, enabling remote code execution when the corpus parameter contains shell metacharacters.