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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/isaacs/minimatch/security/advisories/GHSA-23c5-xmqv-rm74	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:minimatch_project:minimatch::::::node.js::*
	cpe:2.3:a:minimatch_project:minimatch::::::node.js::*
	cpe:2.3:a:minimatch_project:minimatch::::::node.js::*
	cpe:2.3:a:minimatch_project:minimatch::::::node.js::*
	cpe:2.3:a:minimatch_project:minimatch::::::node.js::*
	cpe:2.3:a:minimatch_project:minimatch::::::node.js::*
	cpe:2.3:a:minimatch_project:minimatch::::::node.js::*
	cpe:2.3:a:minimatch_project:minimatch::::::node.js::*

History

No history.

Information

Published : 2026-02-26 02:16

Updated : 2026-02-27 17:16

NVD link : CVE-2026-27904

Mitre link : CVE-2026-27904

CVE.ORG link : CVE-2026-27904

JSON object : View

Products Affected

minimatch_project

minimatch

CWE

CWE-1333

Inefficient Regular Expression Complexity

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