The express-xss-sanitizer (aka Express XSS Sanitizer) package through 2.0.0 for Node.js has an unbounded recursion depth in sanitize in lib/sanitize.js for a JSON request body.
https://www.npmjs.com/package/express-xss-sanitizer
https://github.com/AhmedAdelFahim/express-xss-sanitizer
https://gist.github.com/Spendroslav/177804eaef5acfb222a550de212a1b94