Bug 2467631 (CVE-2026-41672)

Summary: CVE-2026-41672 xmldom: @xmldom/xmldom: xmldom: Arbitrary XML Node Injection
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: abarbaro, alizardo, cdrage, dschmidt, erezende, gmalinko, janstey, jchui, jhe, jkoehler, jlanda, kshier, ktsao, lchilton, lphiri, nboldt, oaljalju, pdelbell, psrna, rhel-process-autobot, rstepani, rushinde, sfeifer, simaishi, smcdonal, stcannon, teagle, watson-tool-maintainers, yguenane
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in xmldom and @xmldom/xmldom, a JavaScript module for parsing and serializing XML. This vulnerability allows an attacker to inject malicious content into XML comments. By doing so, the attacker can prematurely close a comment and insert unauthorized XML elements into the final output. This could lead to the manipulation of data within the XML document.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On: 2486576, 2486583, 2486584, 2486585, 2486586, 2486581    
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Description OSIDB Bzimport 2026-05-07 05:02:28 UTC 
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.