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.
History

Sat, 28 Feb 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Important


Fri, 27 Feb 2026 17:30:00 +0000

Type Values Removed Values Added
First Time appeared Minimatch Project
Minimatch Project minimatch
CPEs cpe:2.3:a:minimatch_project:minimatch:*:*:*:*:*:node.js:*:*
Vendors & Products Minimatch Project
Minimatch Project minimatch

Fri, 27 Feb 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 26 Feb 2026 13:30:00 +0000

Type Values Removed Values Added
First Time appeared Isaacs
Isaacs minimatch
Vendors & Products Isaacs
Isaacs minimatch

Thu, 26 Feb 2026 01:30:00 +0000

Type Values Removed Values Added
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.
Title minimatch ReDoS: nested *() extglobs generate catastrophically backtracking regular expressions
Weaknesses CWE-1333
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-02-26T01:07:42.693Z

Updated: 2026-02-26T19:21:39.006Z

Reserved: 2026-02-24T15:19:29.718Z

Link: CVE-2026-27904

cve-icon Vulnrichment

Updated: 2026-02-26T19:21:29.476Z

cve-icon NVD

Status : Analyzed

Published: 2026-02-26T02:16:21.760

Modified: 2026-02-27T17:16:23.773

Link: CVE-2026-27904

cve-icon Redhat

Severity : Important

Publid Date: 2026-02-26T01:07:42Z

Links: CVE-2026-27904 - Bugzilla