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

  APP
  Minimatch Project
  < 3.1.44.0.0 – 4.2.5 (bez)5.0.0 – 5.1.8 (bez)6.0.0 – 6.2.2 (bez)7.0.0 – 7.4.8 (bez)8.0.0 – 8.0.6 (bez)9.0.0 – 9.0.7 (bez)10.0.0 – 10.2.3 (bez)