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fast-xml-parser@5.3.5 vulnerabilities

Validate XML, Parse XML, Build XML without C/C++ based libraries

  • latest version

    5.3.6

  • latest non vulnerable version

    5.3.6

  • first published

    9 years ago

  • latest version published

    5 days ago

  • licenses detected

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    Direct Vulnerabilities

    Known vulnerabilities in the fast-xml-parser package. This does not include vulnerabilities belonging to this package’s dependencies.

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    VulnerabilityVulnerable Version
    • H
    XML Entity Expansion

    fast-xml-parser is a Validate XML, Parse XML, Build XML without C/C++ based libraries

    Affected versions of this package are vulnerable to XML Entity Expansion in replaceEntitiesValue() when handling excessive DOCTYPE input. An attacker can cause excessive resource consumption and make the application unresponsive by submitting malicious XML input with large text entities referenced multiple times. This is a bypass for Billion Laughs protection in DocTypeReader.js, which prevents excessive referencing within and entity, but doesn't prevent repeated expansion of large entities.

    How to fix XML Entity Expansion?

    Upgrade fast-xml-parser to version 5.3.6 or higher.

    >=4.1.3 <5.3.6
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