Add an early return for when there are no found hostnames in hostname_options

Author: bitterpanda63

aikido_zen/vulnerabilities/ssrf/find_hostname_in_userinput.py

@@ -16,6 +16,8 @@ def find_hostname_in_userinput(user_input, hostname, port=None):
         return False
 
     hostname_options = get_hostname_options(hostname)
+    if len(hostname_options) == 0:
+        return False
 
     variants = [user_input, f"http://{user_input}", f"https://{user_input}"]
     for variant in variants: