xmldom 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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
xmldom xmldom affected
Version Status Constraints
xmldom <= 0.6.0 affected —
@xmldom/xmldom >= 0.9.0, < 0.9.10 affected —
@xmldom/xmldom < 0.8.13 affected —

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Project Subscriptions

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-f6ww-3ggp-fr8h xmldom has XML injection through unvalidated DocumentType serialization
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/xmldom/xmldom/commit/372008f9ae0e20fd69f761c7b79e202598267314 cve-icon cve-icon
https://github.com/xmldom/xmldom/releases/tag/0.8.13 cve-icon cve-icon
https://github.com/xmldom/xmldom/releases/tag/0.9.10 cve-icon cve-icon
https://github.com/xmldom/xmldom/security/advisories/GHSA-f6ww-3ggp-fr8h cve-icon cve-icon
History

Thu, 07 May 2026 04:15:00 +0000

Type Values Removed Values Added
Description xmldom 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.
Title xmldom: XML injection through unvalidated DocumentType serialization
Weaknesses CWE-91
References
Metrics cvssV4_0

{'score': 8.7, 'vector': '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-07T03:47:51.140Z

Reserved: 2026-04-22T03:53:24.405Z

Link: CVE-2026-41674

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-05-07T04:16:33.433

Modified: 2026-05-07T04:16:33.433

Link: CVE-2026-41674

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-07T06:00:16Z

Weaknesses