CVE-2026-69198: ip-address is a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript

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MEDIUM 6.9REMOTE

CVE-2026-69198 is a medium-severity flaw (CVSS 6.9) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ip-address is a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript. From 10.1.1 until 10.2.2, every special-use classification method is built on isInSubnet, which short-circuits to false whenever the address's own subnet mask is shorter than the reference range's mask. That mask comes verbatim from the CIDR suffix on the parsed input, so appending a suffix such as /0 suppresses classification entirely: isLoopback(), isPri

Why this priority

CISA SSVC: public proof of concept
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	6.9 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 59%)
CISA exploited list	No
Weakness	CWE-20, CWE-918
Published	2026-08-03
Last modified	2026-10-23

Publisher (CNA): GitHub, Inc.

Last updated 2026-10-23 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Timeline

2026-08-03 20:17 UTCPublished CVE record published
2026-10-23 21:10 UTCUpdated Record last modified

Exact fixes by distribution

npm · ip-address · FIXED · 10.2.2 · vulnerable: >= 10.1.1, <= 10.2.1 · source

npm install ip-address@">=10.2.2" npm ls ip-address

Fedora ELN · ntpd-rs · FIXED · 1.7.2-3.eln159 · FEDORA-2026-57e4a99310 · source

sudo dnf upgrade --advisory=FEDORA-2026-57e4a99310

Fedora 46 · moby-engine · FIXED · 29.9.2-2.fc46 · FEDORA-2026-4856be87b3 · source

sudo dnf upgrade --advisory=FEDORA-2026-4856be87b3

Debian 12 · node-ip-address · NOT AFFECTED

Debian 13 · node-ip-address · NOT AFFECTED

RHEL 10 · nodejs22 · DEFERRED

RHEL 10 · nodejs24 · DEFERRED

RHEL 10 · rust · DEFERRED

RHEL 10 · ubi10/nodejs-22 · DEFERRED

RHEL 10 · ubi10/nodejs-22-minimal · DEFERRED

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: github.com/beaugunderson/ip-address/security/advisories/GHSA-4xrf-jv44-h6hh

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-69198?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Is CVE-2026-69198 being exploited?

CVE-2026-69198 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-69198 affect?

CVE-2026-69198 affects affected software. Severity is medium (CVSS 6.9). ip-address is a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript. From 10.1.1 until 10.2.2, every special-use classification method is built on isInSubnet, which short-circuits to false whenever the address's own s

How urgent is CVE-2026-69198?

Priority 42/100. CISA SSVC: public proof of concept; Remotely exploitable, no login, no user action

References

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