CVE-2021-23354 Regular Expression Denial of Service (ReDoS)

The package printf before 0.6.1 are vulnerable to Regular Expression Denial of Service ReDoS via the regex string /%?:\w.+|1-9\d$?0 +-\|\d+?.?|\d+?hlL?%bscdeEfFgGioOuxX/g in lib/printf.js. The vulnerable regular expression has cubic worst-case time complexity...