xmldom up to 0.6.0/0.8.14/0.9.11 EntityReference Document.createEntityReference Name xml injection

Summaryinfo

A vulnerability was found in xmldom up to 0.6.0/0.8.14/0.9.11. It has been declared as critical. The impacted element is the function Document.createEntityReference of the component EntityReference Handler. Executing a manipulation of the argument Name can lead to xml injection. This vulnerability is registered as CVE-2026-83610. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in xmldom up to 0.6.0/0.8.14/0.9.11. It has been declared as critical. This vulnerability affects the function Document.createEntityReference of the component EntityReference Handler. The manipulation of the argument name with an unknown input leads to a xml injection vulnerability. The CWE definition for the vulnerability is CWE-91. The product does not properly neutralize special elements that are used in XML, allowing attackers to modify the syntax, content, or commands of the XML before it is processed by an end system. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability was named CVE-2026-83610 since 08/31/2026. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1505 by the MITRE ATT&CK project.

Upgrading to version 0.8.15 or 0.9.12 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

• xmldom

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6.0
• 0.8.0
• 0.8.1
• 0.8.2
• 0.8.3
• 0.8.4
• 0.8.5
• 0.8.6
• 0.8.7
• 0.8.8
• 0.8.9
• 0.8.10
• 0.8.11
• 0.8.12
• 0.8.13
• 0.8.14
• 0.9.0
• 0.9.1
• 0.9.2
• 0.9.3
• 0.9.4
• 0.9.5
• 0.9.6
• 0.9.7
• 0.9.8
• 0.9.9
• 0.9.10
• 0.9.11

Website

• Product: https://github.com/xmldom/xmldom/

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