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fast-xml-builder

2 known vulnerabilities.

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  • Medium 6.1
    CVE-2026-44664

    fast-xml-builder: Comment Value bypass regex

    fast-xml-builder builds XML from JSON. In 1.1.5, the fix for CVE-2026-41650 in fast-xml-parser sanitizes -- sequences in XML comment content using .replace(/--/g, '- -'). This skip the values containing three consecutive dashes (e.g., --->...), allowing an at…

    NaturalIntelligence fast-xml-builder fast-xml-builder npm
  • Medium 6.1
    CVE-2026-44665

    fast-xml-builder: Attribute values with unwanted quotes can bypass malicious or unwanted attributes

    fast-xml-builder builds XML from JSON. Prior to 1.1.7, when an input data has quotes in attribute values but process entities is not enabled, it breaks the attribute value into multiple attributes. This gives the room for an attacker to insert unwanted attrib…

    NaturalIntelligence fast-xml-builder fast-xml-builder npm