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CVE-2022-21670

CVE-2022-21670 · Uncontrolled Resource Consumption in markdown-it

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

markdown-it is a Markdown parser. Prior to version 1.3.2, special patterns with length greater than 50 thousand characterss could slow down the parser significantly. Users should upgrade to version 12.3.2 to receive a patch. There are no known workarounds aside from upgrading.

CVSS 5.3 · Medium · EPSS 2.3% · Fix available

Published
Updated

Stack: system · node

Affected products and versions

  • markdown-it

    Versions
    • < 12.3.2: Affected

    No fix published

  • node-markdown-it Debian:12

    Affected ranges
    • ECOSYSTEM: < 10.0.0+dfsg-6

    Update to 10.0.0+dfsg-6

  • node-markdown-it Debian:13

    Affected ranges
    • ECOSYSTEM: < 10.0.0+dfsg-6

    Update to 10.0.0+dfsg-6

  • node-markdown-it Debian:14

    Affected ranges
    • ECOSYSTEM: < 10.0.0+dfsg-6

    Update to 10.0.0+dfsg-6

  • markdown-it npm

    Affected ranges
    • SEMVER: < 12.3.2

    Update to 12.3.2

  • node-markdown-it Ubuntu:22.04:LTS

    Versions
    • 10.0.0+dfsg-2
    • 10.0.0+dfsg-3
    • 10.0.0+dfsg-3.1
    • 10.0.0+dfsg-4
    • 10.0.0+dfsg-5
    • 10.0.0+dfsg-6
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-markdown-it Ubuntu:24.04:LTS

    Versions
    • 22.2.3+dfsg+~12.2.3-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-markdown-it Ubuntu:25.10

    Versions
    • 22.2.3+dfsg+~12.2.3-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-markdown-it Ubuntu:26.10

    Versions
    • 22.2.3+dfsg+~12.2.3-4
    • 22.2.3+dfsg+~12.2.3-5
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • node-markdown-it Ubuntu:26.04:LTS

    Versions
    • 22.2.3+dfsg+~12.2.3-2
    • 22.2.3+dfsg+~12.2.3-4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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