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CVE-2021-21366

CVE-2021-21366 · Misinterpretation of malicious XML input

This page contains facts from public vulnerability sources. Check the original advisory before updating.

xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module. xmldom versions 0.4.0 and older do not correctly preserve system identifiers, FPIs or namespaces when repeatedly parsing and serializing maliciously crafted documents. This may lead to unexpected syntactic changes during XML processing in some downstream applications. This is fixed in version 0.5.0. As a workaround downstream applications can validate the input and reject the maliciously crafted documents.

CVSS 4.3 · Medium · EPSS 1.3% · Fix available

Published
Updated

Stack: system · node

Affected products and versions

  • xmldom

    Versions
    • < 0.5.0: Affected

    No fix published

  • node-xmldom Debian:12

    Affected ranges
    • ECOSYSTEM: < 0.5.0-1

    Update to 0.5.0-1

  • node-xmldom Debian:13

    Affected ranges
    • ECOSYSTEM: < 0.5.0-1

    Update to 0.5.0-1

  • node-xmldom Debian:14

    Affected ranges
    • ECOSYSTEM: < 0.5.0-1

    Update to 0.5.0-1

  • xmldom npm

    Affected ranges
    • SEMVER: < 0.5.0

    Update to 0.5.0

  • node-xmldom Ubuntu:20.04:LTS

    Versions
    • 0.1.27+ds-1
    Affected ranges
    • ECOSYSTEM: < 0.1.27+ds-1+deb10u2build0.20.04.1

    Update to 0.1.27+ds-1+deb10u2build0.20.04.1

Original sources

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