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.

• CWE-91
• CWE-91

• https://github.com/xmldom/xmldom/commit/b397540889086da868c30c366ad5c220d1a750c7
• https://github.com/xmldom/xmldom/commit/fda7cc313de30243fea35cada64e0bb12099c2a1
• https://github.com/xmldom/xmldom/pull/987
• https://github.com/xmldom/xmldom/releases/tag/0.8.13
• https://github.com/xmldom/xmldom/releases/tag/0.9.10
• https://github.com/xmldom/xmldom/security/advisories/GHSA-j759-j44w-7fr8
• https://access.redhat.com/errata/RHSA-2026:26234
• https://access.redhat.com/errata/RHSA-2026:60520
• https://access.redhat.com/security/cve/CVE-2026-41672
• https://bugzilla.redhat.com/show_bug.cgi?id=2467631
• https://github.com/xmldom/xmldom/security/advisories/GHSA-j759-j44w-7fr8
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41672.json

Published

May 7, 2026

Last Modified

Aug 28, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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