CVE-2026-83610
Fixed in a distro release EPSS <1%CVSS 6.3
xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module. Prior to @xmldom/xmldom versions 0.8.15 and 0.9.12, and in xmldom version 0.6.0 and earlier, Document.createEntityReference(name) accepts an invalid name and the ENTITY_REFERENCE_NODE serializer emits the resulting nodeName directly in &name; form. Directly serializing the node or fragment with XMLSerializer.serializeToString() and requireWellFormed: true can therefore break the entity-reference boundary and produce attacker-controlled XML markup when reparsed. The parser does not ordinarily create these nodes, and element-child insertion is rejected, so exploitation requires an application to create and directly serialize an EntityReference. This issue is fixed in @xmldom/xmldom versions 0.8.15 and 0.9.12; no fixed version is available for xmldom.
Products: xmldom
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| npm | @xmldom/xmldom | 0.8.15 |
| npm | @xmldom/xmldom | 0.9.12 |
| npm | xmldom | no fix |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Chainguard | gitlab-rails-ce-18.11 | 18.11.11-r2 |
| Chainguard | gitlab-rails-ce-19.0 | 19.0.10-r0 |
| Chainguard | gitlab-rails-ce-19.1 | 19.1.7-r6 |
| Chainguard | gitlab-rails-ce-19.3 | 19.3.1-r6 |
| Chainguard | gitlab-rails-ce-fips-19.0 | 19.0.9-r3 |
| Chainguard | gitlab-rails-ce-fips-19.1 | 19.1.7-r7 |
| Chainguard | sqlpad | 7.5.7-r37 |
| Chainguard | wazuh-dashboard-security-plugin | 4.14.7-r14 |
| Chainguard | wazuh-dashboard-security-plugin-fips | 4.14.7-r14 |
| Debian 12 | node-xmldom | no fix |
| Debian 13 | node-xmldom | no fix |
| Debian 14 | node-xmldom | 0.9.12-1 |
| Ubuntu 20.04 LTS | node-xmldom | no fix |
| Ubuntu 22.04 LTS | node-xmldom | no fix |
| Ubuntu 24.04 LTS | node-xmldom | no fix |
| Ubuntu 26.04 LTS | node-xmldom | no fix |
| Ubuntu 26.10 | node-xmldom | no fix |
| Wolfi | sqlpad | 7.5.7-r37 |