CVE-2026-27904 minimatch is a minimal matching utility for converting glob expressions into JavaScript RegExp objects
Description
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| minimatch 10.0 | 10.0.0 → < 10.2.3 | 10.2.3 |
| minimatch 9.0 | 9.0.0 → < 9.0.7 | 9.0.7 |
| minimatch 8.0 | 8.0.0 → < 8.0.6 | 8.0.6 |
| minimatch 7.0 | 7.0.0 → < 7.4.8 | 7.4.8 |
| minimatch 6.0 | 6.0.0 → < 6.2.2 | 6.2.2 |
| minimatch 5.0 | 5.0.0 → < 5.1.8 | 5.1.8 |
| minimatch 4.0 | 4.0.0 → < 4.2.5 | 4.2.5 |
| minimatch 3.1 | earliest → < 3.1.4 | 3.1.4 |
References
- github.com github.com
Timeline
- Published
- Last modified