xmldom: Creation-time XML Name/QName validation is bypassable via an embedded line terminator, allowing injection on ...
High-risk advisory
CVE-2026-83609
Summary
xmldom: Creation-time XML Name/QName validation is bypassable via an embedded line terminator, allowing injection on the default serialization path
Why it matters
GitHub has published a reviewed security advisory for @xmldom/xmldom. Prioritize it with other application dependency updates, especially because EPSS places it in the 25% percentile.
Operator check
Check whether @xmldom/xmldom is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. CVSS score: 8.7. EPSS probability: 0.3%; percentile: 25%.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.