---
id: CVE-2026-111997
title: >-
  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.
summary: >-
  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.
severity: medium
cvss: 6.3
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-1333
vendor: beaugunderson
product: ip-address
affected:
  - ip-address < 10.7.4
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-18T11:12:34.844670Z'
exploitAvailable: true
published: '2026-10-18'
updated: '2026-10-18'
sourceUpdated: '2026-10-18T11:12:55.202Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-111997'
references:
  - url: >-
      https://github.com/beaugunderson/ip-address/security/advisories/GHSA-rxp7-6hxx-x8q5
tags:
  - cve.org
  - exploit-available
ingestedAt: '2026-10-18T01:27:58.672Z'
epss: 0.00253
epssPercentile: 0.15636
---

## Overview

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.

## Affected

- `ip-address < 10.7.4`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.