SB2026022345 - Multiple vulnerabilities in minimatch

Description

This security bulletin contains information about 2 vulnerabilities.

1) Inefficient regular expression complexity (CVE-ID: CVE-2026-26996)

CWE-ID: CWE-1333 - Inefficient Regular Expression Complexity

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient input validation when processing untrusted input with a regular expressions within "minimatch" function. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.

2) Inefficient Algorithmic Complexity (CVE-ID: CVE-2026-27903)

CWE-ID: CWE-407 - Inefficient Algorithmic Complexity

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to inefficient algorithmic complexity in matchOne() when processing glob patterns containing multiple non-adjacent GLOBSTAR segments. A remote attacker can supply a specially crafted glob pattern to cause a denial of service.

The issue is triggered on non-matching input and can stall the Node.js event loop while the recursive call tree is fully explored.

Remediation

Install update from vendor's website.

References

• https://github.com/isaacs/minimatch/security/advisories/GHSA-3ppc-4f35-3m26
• https://github.com/isaacs/minimatch/security/advisories/GHSA-7r86-cg39-jmmj
• https://github.com/isaacs/minimatch/blob/v10.2.2/src/index.ts#L960