CVE Watch8 de set. de 2026

CVE-2026-83618

xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module. From 0.9.10 until 0.9.12, the requ

CVSS

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Sem CVSS

EPSS

0.6%

p47

KEV

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Exploit Today

0-100

Publicado: 1 de set. de 2026 · Última mod.: 8 de set. de 2026 · CWE-91 · CWE-625

EPSS · 30d

0.6%EPSS · 30 dias0.6%

2026-10-082026-11-05

Descrição técnica

xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module. From 0.9.10 until 0.9.12, the requireWellFormed: true serializer validates DocumentType.publicId and DocumentType.systemId with PubidLiteral_match and SystemLiteral_match expressions produced by reg() in lib/grammar.js, which inherit the multiline flag. A complete valid literal on the first line can therefore satisfy the matcher while U+000A, U+000D, U+2028, or U+2029 and breakout markup remain in the emitted <!DOCTYPE ...> declaration. This bypasses the strict-serialization mitigation for the earlier DocumentType injection advisory; creation and direct property assignment remain unvalidated by design. This issue is fixed in @xmldom/xmldom version 0.9.12.

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