CVE-2026-41674

Summary

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.

Affected Software

VendorProductVersion RangeStatus
xmldomxmldomxmldom <= 0.6.0affected
xmldomxmldom@xmldom/xmldom >= 0.9.0, < 0.9.10affected
xmldomxmldom@xmldom/xmldom < 0.8.13affected

Weaknesses

  • CWE-91: CWE-91: XML Injection (aka Blind XPath Injection)

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: yes
    • Technical Impact: partial

Additional References

xmldom: xmldom: Arbitrary XML markup injection

Additional References

References