xmldom prior 0.8.13/0.9.10 xml injection

Summaryinfo

A vulnerability, which was classified as critical, was found in xmldom. This affects an unknown function. The manipulation results in xml injection. This vulnerability is identified as CVE-2026-41672. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in xmldom. Affected is some unknown functionality. The manipulation with an unknown input leads to a xml injection vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-41672 since 04/22/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1505.

Upgrading to version 0.8.13 or 0.9.10 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch b397540889086da868c30c366ad5c220d1a750c7 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Name

• xmldom

License

• open-source

Website

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

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