ip-address: XSS in Address6 HTML-emitting methods

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-42338
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-12 20:16:41 UTC
Updated2026-07-15 02:21:31 UTC
Descriptionip-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.

Risk And Classification

Primary CVSS: v4.0 5.3 MEDIUM from [email protected]

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

EPSS: 0.004710000 probability, percentile 0.375210000 (date 2026-07-13)

Problem Types: CWE-79 | CWE-79 CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary5.3MEDIUMCVSS: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/C...
4.0CNADECLARED5.3MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
3.1[email protected]Primary6.1MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
3.1ADPCVSS8.1HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
3.10b0ca135-0b70-47e7-9f44-1890c2a1c46cSecondary8.1HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
Passive
Confidentiality
Low
Integrity
Low
Availability
None
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

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

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Beaugunderson Ip-address All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Beaugunderson Ip-address affected < 10.1.1 Not specified
ADP Red Hat Red Hat Enterprise Linux 10 unaffected 1:24.18.0-1.el10_2 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 10 unaffected 1:22.23.1-2.el10_2 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support unaffected 1:22.23.1-2.el10_0 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 9 unaffected 9080020260626074955.rhel9 * rpm Not specified
ADP Red Hat Red Hat Enterprise Linux 9 unaffected 9080020260626075442.rhel9 * rpm Not specified
ADP Red Hat Red Hat Ansible Automation Platform 2.6 unaffected 1782721130 * rpm Not specified
ADP Red Hat Red Hat Developer Hub 1.10 unaffected 1783448184 * rpm Not specified
ADP Red Hat Red Hat Developer Hub 1.9 unaffected 1782761244 * rpm Not specified
ADP Red Hat Red Hat OpenShift Dev Spaces 3.29 unaffected 1782498475 * rpm Not specified
ADP Red Hat Red Hat OpenShift Dev Spaces 3.29 unaffected 1782498792 * rpm Not specified
ADP Red Hat Red Hat OpenShift Service Mesh 2.6 unaffected 1781937133 * rpm Not specified
ADP Red Hat Red Hat OpenShift Service Mesh 2.6 unaffected 1782287580 * rpm Not specified
ADP Red Hat Red Hat OpenShift Service Mesh 3 unaffected 1782201894 * rpm Not specified
ADP Red Hat Red Hat OpenShift Service Mesh 3 unaffected 1782201833 * rpm Not specified
ADP Red Hat Red Hat OpenShift Service Mesh 3.1 unaffected 1782201696 * rpm Not specified
ADP Red Hat Red Hat OpenShift Service Mesh 3.1 unaffected 1782201537 * rpm Not specified
ADP Red Hat Red Hat OpenShift Service Mesh 3.2 unaffected 1782201851 * rpm Not specified
ADP Red Hat Red Hat OpenShift Service Mesh 3.2 unaffected 1782201812 * rpm Not specified
ADP Red Hat Red Hat OpenShift Service Mesh 3.3 unaffected 1782231869 * rpm Not specified
ADP Red Hat Red Hat OpenShift Service Mesh 3.3 unaffected 1782201466 * rpm Not specified
ADP Red Hat Confidential Compute Attestation Not specified Not specified
ADP Red Hat Cryostat 4 Not specified Not specified
ADP Red Hat Cryostat 4 Not specified Not specified
ADP Red Hat Exploit Intelligence Not specified Not specified
ADP Red Hat Migration Toolkit For Containers Not specified Not specified
ADP Red Hat Multicluster Engine For Kubernetes Not specified Not specified
ADP Red Hat OpenShift Pipelines Not specified Not specified
ADP Red Hat OpenShift Pipelines Not specified Not specified
ADP Red Hat Red Hat Advanced Cluster Management For Kubernetes 2 Not specified Not specified
ADP Red Hat Red Hat AMQ Broker 7 Not specified Not specified
ADP Red Hat Red Hat Build Of Apache Camel For Spring Boot 4 Not specified Not specified
ADP Red Hat Red Hat Build Of Apache Camel - HawtIO 4 Not specified Not specified
ADP Red Hat Red Hat Build Of Podman Desktop Not specified Not specified
ADP Red Hat Red Hat Build Of Podman Desktop - Tech Preview Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux 10 Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux 9 Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux AI RHEL AI 3 Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux AI RHEL AI 3 Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux AI RHEL AI 3 Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux AI RHEL AI 3 Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux AI RHEL AI 3 Not specified Not specified
ADP Red Hat Red Hat Hardened Images Not specified Not specified
ADP Red Hat Red Hat OpenShift AI RHOAI Not specified Not specified
ADP Red Hat Red Hat OpenShift Container Platform 4 Not specified Not specified
ADP Red Hat Red Hat OpenShift Container Platform 4 Not specified Not specified
ADP Red Hat Red Hat OpenShift Dev Spaces Not specified Not specified
ADP Red Hat Red Hat Satellite 6 Not specified Not specified
ADP Red Hat Self-service Automation Portal 2 Not specified Not specified

References

ReferenceSourceLinkTags
access.redhat.com/errata/RHSA-2026:33160 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:34374 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:35891 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:35842 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:36754 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42338.json 0b0ca135-0b70-47e7-9f44-1890c2a1c46c security.access.redhat.com
bugzilla.redhat.com/show_bug.cgi 0b0ca135-0b70-47e7-9f44-1890c2a1c46c bugzilla.redhat.com
access.redhat.com/errata/RHSA-2026:33163 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:35892 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:35841 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:39246 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/security/cve/CVE-2026-42338 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:36820 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:33173 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
github.com/beaugunderson/ip-address/security/advisories/GHSA-v2v4-37r5-5v8g 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com Exploit, Mitigation, Vendor Advisory
access.redhat.com/errata/RHSA-2026:33183 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:33155 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:33574 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

SourceTimeEvent
ADP2026-05-12T21:01:14.436ZReported to Red Hat.
ADP2026-05-12T19:43:16.470ZMade public.

Solutions

ADP: RHSA-2026:39246: Red Hat Enterprise Linux AppStream EUS (v. 10.0)

ADP: RHSA-2026:35842: Red Hat Enterprise Linux AppStream (v. 10)

ADP: RHSA-2026:35841: Red Hat Enterprise Linux AppStream (v. 10)

ADP: RHSA-2026:35892: Red Hat Enterprise Linux AppStream (v. 9)

ADP: RHSA-2026:35891: Red Hat Enterprise Linux AppStream (v. 9)

ADP: RHSA-2026:34374: Red Hat Ansible Automation Platform 2.6

ADP: RHSA-2026:36754: Red Hat Developer Hub 1.10

ADP: RHSA-2026:33574: Red Hat Developer Hub 1.9

ADP: RHSA-2026:36820: Red Hat OpenShift Dev Spaces 3.29

ADP: RHSA-2026:33155: Red Hat OpenShift Service Mesh 2.6

ADP: RHSA-2026:33163: Red Hat OpenShift Service Mesh 3.1

ADP: RHSA-2026:33173: Red Hat OpenShift Service Mesh 3.2

ADP: RHSA-2026:33183: Red Hat OpenShift Service Mesh 3.3

ADP: RHSA-2026:33160: Red Hat OpenShift Service Mesh 3

Workarounds

ADP: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

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