xmldom: XML injection through unvalidated DocumentType serialization

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-41674
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-07 04:16:33 UTC
Updated2026-07-22 12:17:52 UTC
Descriptionxmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) `DOMParser` and `XMLSerializer` module. In @xmldom/xmldom prior to versions 0.9.10 and 0.8.13 and xmldom version 0.6.0 and prior, the package serializes DocumentType node fields (internalSubset, publicId, systemId) verbatim without any escaping or validation. When these fields are set programmatically to attacker-controlled strings, XMLSerializer.serializeToString can produce output where the DOCTYPE declaration is terminated early and arbitrary markup appears outside it. This issue has been patched in versions @xmldom/xmldom versions 0.9.10 and 0.8.13.

Risk And Classification

Primary CVSS: v4.0 8.7 HIGH from [email protected]

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/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: 0.004570000 probability, percentile 0.371380000 (date 2026-07-22)

Problem Types: CWE-91 | CWE-91 CWE-91: XML Injection (aka Blind XPath Injection) | CWE-91 XML Injection (aka Blind XPath Injection)

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary8.7HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/C...
4.0CNADECLARED8.7HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
3.1ADPCVSS7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
3.10b0ca135-0b70-47e7-9f44-1890c2a1c46cSecondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS v4.0 Breakdown

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

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/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
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Xmldom Xmldom affected xmldom <= 0.6.0 Not specified
CNA Xmldom Xmldom affected @xmldom/xmldom >= 0.9.0, < 0.9.10 Not specified
CNA Xmldom Xmldom affected @xmldom/xmldom < 0.8.13 Not specified
ADP Red Hat Red Hat Developer Hub 1.8 unaffected 1779841586 * rpm Not specified
ADP Red Hat Red Hat Developer Hub 1.9 unaffected 1781187342 * rpm Not specified
ADP Red Hat Red Hat OpenShift Container Platform 4.20 unaffected 1779864090 * rpm Not specified
ADP Red Hat Red Hat OpenShift Container Platform 4.21 unaffected 1779252093 * rpm Not specified
ADP Red Hat Red Hat Build Of Podman Desktop Not specified Not specified
ADP Red Hat Red Hat Fuse 7 Not specified Not specified
ADP Red Hat Red Hat OpenShift AI RHOAI Not specified Not specified
ADP Red Hat Self-service Automation Portal 2 Not specified Not specified

References

ReferenceSourceLinkTags
access.redhat.com/security/cve/CVE-2026-41674 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
github.com/xmldom/xmldom/commit/372008f9ae0e20fd69f761c7b79e202598267314 [email protected] github.com
access.redhat.com/errata/RHSA-2026:21703 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:20034 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
github.com/xmldom/xmldom/security/advisories/GHSA-f6ww-3ggp-fr8h 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41674.json 0b0ca135-0b70-47e7-9f44-1890c2a1c46c security.access.redhat.com
access.redhat.com/errata/RHSA-2026:21338 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
bugzilla.redhat.com/show_bug.cgi 0b0ca135-0b70-47e7-9f44-1890c2a1c46c bugzilla.redhat.com
github.com/xmldom/xmldom/releases/tag/0.9.10 [email protected] github.com
access.redhat.com/errata/RHSA-2026:26234 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
github.com/xmldom/xmldom/releases/tag/0.8.13 [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

SourceTimeEvent
ADP2026-05-07T05:01:25.803ZReported to Red Hat.
ADP2026-05-07T03:47:51.140ZMade public.

Solutions

ADP: RHSA-2026:21338: Red Hat Developer Hub 1.8

ADP: RHSA-2026:26234: Red Hat Developer Hub 1.9

ADP: RHSA-2026:21703: Red Hat OpenShift Container Platform 4.20

ADP: RHSA-2026:20034: Red Hat OpenShift Container Platform 4.21

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