Unbounded Quantifier Vulnerability in Minimatch by Isaac's
CVE-2026-27904

7.5HIGH

Key Information:

Vendor

Isaacs

Status
Minimatch
Vendor
CVE Published:
26 February 2026

What is CVE-2026-27904?

The Minimatch utility, designed for matching glob patterns, has a vulnerability that results in the generation of regex patterns with nested unbounded quantifiers. Versions prior to 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 are susceptible to catastrophic backtracking. This issue is triggered by basic usage of the minimatch() API, where a simple 12-byte pattern can stall execution for over 7 seconds with specific non-matching input, and can escalate to several minutes with slight modifications. Both nested *() and +() extglobs are affected, calling for an immediate update to patched versions to mitigate the risk.

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Affected Version(s)

minimatch >= 10.0.0, < 10.2.3 < 10.0.0, 10.2.3

minimatch >= 9.0.0, < 9.0.7 < 9.0.0, 9.0.7

minimatch >= 8.0.0, < 8.0.6 < 8.0.0, 8.0.6

References

https://github.com/isaacs/minimatch/security/advisories/G...
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CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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