Vulnerability library
Security checkSeptember 08, 2026

xmldom: Attribute name injection via setAttribute() bypasses requireWellFormed - xmldom

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High severitynpmxmldom

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Description

Element.setAttribute() in @xmldom/xmldom bypasses attribute name validation by calling the private _createAttribute(name) method, which performs no validation. The public createAttribute() method correctly validates names against an anchored QName pattern, but setAttribute() never uses it.

Recommendation

No fix is available yet. Followings are affected versions:

  • <= 0.6.0

References

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See something that needs correcting? Let us knowUpdated September 08, 2026