CVE-2026-41672
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 allows attacker-controlled comment content to be serialized into XML without validating or neutralizing comment-breaking sequences. As a result, an attacker can terminate the comment early and inject arbitrary XML nodes into the serialized output. This issue has been patched in versions @xmldom/xmldom versions 0.9.10 and 0.8.13.
Scoring
- Severity
- HIGH
- CVSS base score
- 8.7
- CVSS 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
- EPSS probability
- 0.36%
- CWE
- CWE-91
- Published
- 2026-05-07
- Last modified
- 2026-08-28
Affected products
- xmldom xmldom
- xmldom xmldom
- xmldom xmldom
Weakness type
Related vulnerabilities
- CVE-2026-2310 — IBM webMethods Integration Server is vulnerable to an XML external entity injection (XXE) attack when processing XML data
- CVE-2026-83618 — xmldom: requireWellFormed DocType publicId/systemId validation is bypassable via an embedded line terminator
- CVE-2026-83617 — xmldom: requireWellFormed element/attribute name validation is bypassable via an embedded line terminator
- CVE-2026-83616 — xmldom: Processing Instruction Target Injection Bypasses requireWellFormed
- CVE-2026-83609 — xmldom: Creation-time XML Name/QName validation is bypassable via an embedded line terminator, allowing injection on the default serialization path
- CVE-2026-83608 — xmldom: DocType `name` Injection Bypasses requireWellFormed
- CVE-2026-83607 — xmldom: Element name injection via createElement() bypasses requireWellFormed
- CVE-2026-83605 — xmldom: Attribute name injection via setAttribute() bypasses requireWellFormed