GHSA-23C5-XMQV-RM74 minimatch ReDoS: nested *() extglobs generate catastrophically backtracking regular expressions
Summary Nested extglobs produce regexps with nested unbounded quantifiers e.g. ?:?:a|b, which exhibit catastrophic backtracking in V8. With a 12-byte pattern a|b and an 18-byte non-matching input, minimatch stalls for over 7 seconds. Adding a single nesting level or a few input characters pushes...