CVE-2026-26996: minimatch has a ReDoS via repeated wildcards with non-matching literal in pattern

minimatch is vulnerable to Regular Expression Denial of Service (ReDoS) when a glob pattern contains many consecutive * wildcards followed by a literal character that doesn’t appear in the test string. Each * compiles to a separate [^/]*? regex group, and when the match fails, V8’s regex engine backtracks exponentially across all possible splits.

The time complexity is O(4^N) where N is the number of * characters. With N=15, a single minimatch() call takes ~2 seconds. With N=34, it hangs effectively forever.