CVE-2026-27904

minimatch is a minimal matching utility for converting glob expressions into JavaScript RegExp objects. Prior to version 10.2.3, 9.0.7, 8.0.6, 7.4.8, 6.2.2, 5.1.8, 4.2.5, and 3.1.4, 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 this to minutes. This is the most severe finding: it is triggered by the default `minimatch()` API with no special options, and the minimum viable pattern is only 12 bytes. The same issue affects `+()` extglobs equally. Versions 10.2.3, 9.0.7, 8.0.6, 7.4.8, 6.2.2, 5.1.8, 4.2.5, and 3.1.4 fix the issue.

• minimatch project minimatch (< 3.1.4) • minimatch project minimatch (>= 4.0.0 < 4.2.5) • minimatch project minimatch (>= 5.0.0 < 5.1.8) • minimatch project minimatch (>= 6.0.0 < 6.2.2) • minimatch project minimatch (>= 7.0.0 < 7.4.8) • minimatch project minimatch (>= 8.0.0 < 8.0.6) • minimatch project minimatch (>= 9.0.0 < 9.0.7) • minimatch project minimatch (>= 10.0.0 < 10.2.3)