CVE-2026-26996 (High) detected in minimatch-3.1.2.tgz

[mend-for-github-com]

CVE-2026-26996 - High Severity Vulnerability

Vulnerable Library - minimatch-3.1.2.tgz

a glob matcher in javascript

Library home page: https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz

Path to dependency file: /package.json

Path to vulnerable library: /package.json

Dependency Hierarchy:

• recursive-readdir-2.2.3.tgz (Root Library)
  • ❌ minimatch-3.1.2.tgz (Vulnerable Library)

Found in base branch: csl

Vulnerability Details

minimatch is a minimal matching utility for converting glob expressions into JavaScript RegExp objects. Versions prior to 10.2.1, 3.1.3, 4.2.4, 5.1.7, 6.2.1, 7.4.7, 8.0.5, and 9.0.6 are vulnerable to Regular Expression Denial of Service (ReDoS) when a glob pattern contains many consecutive * wildcards followed by a literal character that doesn't appear in the test string. Each * compiles to a separate [^/]*? regex group, and when the match fails, V8's regex engine backtracks exponentially across all possible splits. The time complexity is O(4^N) where N is the number of * characters. With N=15, a single minimatch() call takes ~2 seconds. With N=34, it hangs effectively forever. Any application that passes user-controlled strings to minimatch() as the pattern argument is vulnerable to DoS.
This issue has been fixed in versions 10.2.1, 3.1.3, 4.2.4, 5.1.7, 6.2.1, 7.4.7, 8.0.5, and 9.0.6.
Mend Note: The description of this vulnerability differs from MITRE.

Publish Date: 2026-02-20

URL: CVE-2026-26996

CVSS 3 Score Details (7.5)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: None
  • Integrity Impact: None
  • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-3ppc-4f35-3m26

Release Date: 2026-02-19

Fix Resolution: https://github.com/isaacs/minimatch.git - v10.2.1,https://github.com/isaacs/minimatch.git - v5.1.7,https://github.com/isaacs/minimatch.git - v4.2.4,https://github.com/isaacs/minimatch.git - v3.1.3,https://github.com/isaacs/minimatch.git - v8.0.5,https://github.com/isaacs/minimatch.git - v9.0.6,https://github.com/isaacs/minimatch.git - v6.2.1,https://github.com/isaacs/minimatch.git - v7.4.7