VULNERABILITY INTELLIGENCE

CVE-2026-41674

CVSS score7.5 HIGH
EPSS probability0.56%
CISA KEVNot currently listed
Published2026-05-07
Last modified2026-09-10
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

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.

Weakness classification

  • security-advisories@github.com: CWE-91
  • 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-91

Primary references