Inefficient Regular Expression Complexity Affecting npm-12 package, versions <12.2.1-r1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.32% (25th percentile)

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  • Snyk IDSNYK-WOLFILATEST-NPM12-21718741
  • published27 Oct 2026
  • disclosed18 Oct 2026

Introduced: 18 Oct 2026

NewCVE-2026-111997  (opens in a new tab)
CWE-1333  (opens in a new tab)

How to fix?

Upgrade Wolfi npm-12 to version 12.2.1-r1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream npm-12 package and not the npm-12 package as distributed by Wolfi. See How to fix? for Wolfi relevant fixed versions and status.

ip-address before 10.7.4 allows a denial of service (CPU consumption from quadratic complexity, and application stall) via many % characters in input reaching a function call that uses the Address6 constructor.

CVSS Base Scores

version 3.1