Uh, no. A heap spray is not an attack. It's a method of exploiting a vulnerability, but it's a) trivial to do and b) useless without said vuln. Also rewritin

Uh, no. A heap spray is not an attack. It's a method of exploiting a vulnerability, but it's a) trivial to do and b) useless without said vuln. Also rewriting the JS engine in Rust doesn't change the ability to heap spray.