Markdown-it

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    Products: 2
    Vulnerabilities: 8
    Known Exploited: 0
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    Critical Level Threats
    3
    High Level Threats
    3
    Medium Level Threats
    1
    Low Level Threats

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    Vulnerabilities

    CVE-2026-111758

    markdown-it: Quadratic-time rendering of a single multi-line link reference definition with default options (regression since 14.0)

    Last Modified: Oct 28, 2026
    Published: Oct 20, 2026

    CVE-2026-111766

    markdown-it: Quadratic-time denial of service in inline HTML parsing with html enabled

    Last Modified: Oct 26, 2026
    Published: Oct 19, 2026

    CVE-2026-111759

    markdown-it: Quadratic complexity in smartquotes with unmatched closing quotes

    Last Modified: Oct 19, 2026
    Published: Oct 19, 2026

    CVE-2026-48801

    linkify-it: Quadratic algorithmic complexity in LinkifyIt#match scan loop

    Last Modified: Jul 15, 2026
    Published: Jul 14, 2026

    CVE-2026-59887

    linkify-it: Quadratic-complexity DoS via the `mailto:` validator scan-loop on attacker text

    Last Modified: Aug 26, 2026
    Published: Jul 08, 2026
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    Markdown-It Vulnerabilities & Security CVEs | CVE-DB