CVE-2026-41674

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.

References

https://github.com/xmldom/xmldom/security/advisories/GHSA-f6ww-3ggp-fr8h

https://github.com/xmldom/xmldom/releases/tag/0.9.10

https://github.com/xmldom/xmldom/releases/tag/0.8.13

https://github.com/xmldom/xmldom/commit/372008f9ae0e20fd69f761c7b79e202598267314

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4

EPSS