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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-42338

31
FAUCET Score

ip-address is a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript. Prior to 10.1.1, Address6.group() and Address6.link() do not HTML-escape attacker-controlled content before embedding it in the HTML strings they return, and AddressError.parseMessage (emitted by the Address6 constructor for invalid input) can contain unescaped attacker-controlled content in one branch. An application that (1) passes untrusted input to Address6 and (2) renders the output of these methods, or the thrown error's parseMessage, as HTML (e.g. via innerHTML) is vulnerable to cross-site scripting. This vulnerability is fixed in 10.1.1.

First published: May 12, 2026Last modified: May 12, 2026

Impacted Technologies

VendorProductVersion(s)CPE
< 10.1.1CPE matchmatch criteria
cpe:2.3:a:beaugunderson:ip-address:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 4.0

5.3MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
VS Confidentiality
LOW
VS Integrity
LOW
VS Availability
NONE
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.47%
Probability of exploitation in next 30 days
EPSS Percentile
38.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0047 is in the 40th percentile among its peer group of 26,221 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

npmpatch availablevia ghsa
Product: ip-addressFixed in: 10.1.1
github_advisoryworkaround availablevia nvd_reference
View patch

Vendor Advisories (1)

npmGHSA-v2v4-37r5-5v8gmedium

ip-address has XSS in Address6 HTML-emitting methods

May 5, 2026

References

access.redhat.com / errata/RHSA-2026:33155
access.redhat.com / errata/RHSA-2026:33160
access.redhat.com / errata/RHSA-2026:33163
access.redhat.com / errata/RHSA-2026:33173
access.redhat.com / errata/RHSA-2026:33183
access.redhat.com / errata/RHSA-2026:33574
access.redhat.com / errata/RHSA-2026:34374
access.redhat.com / errata/RHSA-2026:35841
access.redhat.com / errata/RHSA-2026:35842
access.redhat.com / errata/RHSA-2026:35891
access.redhat.com / errata/RHSA-2026:35892
access.redhat.com / errata/RHSA-2026:36754
access.redhat.com / errata/RHSA-2026:36820
access.redhat.com / errata/RHSA-2026:39246
access.redhat.com / errata/RHSA-2026:39868
access.redhat.com / errata/RHSA-2026:41928
access.redhat.com / errata/RHSA-2026:41947
access.redhat.com / security/cve/CVE-2026-42338
bugzilla.redhat.com / show_bug.cgi
security.access.redhat.com / data/csaf/v2/vex/2026/cve-2026-42338.json
github.com / beaugunderson/ip-address/security/advisories/GHSA-v2v4-37r5-5v8g
ExploitMitigationVendor Advisory