Hello, Markus Linnala has found at least two bugs with afl-fuzz: http://forum.nginx.org/read.php?29,261583 http://forum.nginx.org/read.php?29,261582 nginScript is very new, I'm sure you can help to test it if you know how to use afl-fuzz. Best Regards, Olivier Posted at Nginx Forum: http://forum.nginx.org/read.php?2,261882,261891#msg-261891