[+] Loaded haraka-email-message library
[+] Testing Header.parse() - the convert_document entrypoint

[+] Test 1: Parsing normal email headers...
[+] Normal headers parsed successfully
[+] From header: test@example.com

[+] Test 2: Parsing malicious headers with __proto__ key...
[+] This triggers the prototype pollution vulnerability in _add_header()
[+] CRASH CONFIRMED!
[+] Error type: TypeError
[+] Error message: this.headers[key][method] is not a function
[+] This matches the expected vulnerability behavior
[+] Crash evidence saved to crash_evidence.json