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    CVE-2026-44665

    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 attributes to the XML/HTML. This vulnerability is fixed in 1.1.7.

    Published:May 13, 2026
    Last Modified:May 18, 2026
    EPS:May 13, 2026
    EPSS Score:0.00031
    CVSS Score:6.1

    Affected Products

    Vendor
    Naturalintelligence
    Product
    Fast-xml-builder

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-250 XML Injection
    CAPEC-83 XPath Injection

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High