markdown-it Project markdown-it any version

markdown-it html_re.js redos

Versions of the package markdown-it from 13.0.0 and before 14.1.1 are vulnerable to Regular Expression Denial of Service (ReDoS) due to the use of the regex /\*+$/ in the linkify function. An attacker can supply a long sequence of * characters followed by a non-matching character, which triggers excessive backtracking and may lead to a denial-of-service condition.

Uncontrolled Resource Consumption in markdown-it

markdown-it: Quadratic complexity DoS in smartquotes rule via replaceAt string operations