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markdown-it

8 known vulnerabilities.

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  • High 7.5

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

    markdown-it is a Markdown parser. From versions 14.1.0 to before 14.3.3, and 15.0.0 to before 15.0.3, a link reference definition whose label or title is never closed is O(n²) with default options. Continuation lines are pulled lazily with str += lineContent …

  • High 7.5

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

    markdown-it is a Markdown parser. Prior to 14.3.2 and 15.0.2, when typographer: true is enabled, specially crafted Markdown can cause quadratic processing time in the smartquotes rule, potentially leading to denial of service in applications processing untrus…

  • High 8.7

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

    linkify-it is a links recognition library with full Unicode support. Prior to 5.0.1, LinkifyIt.prototype.match, the package's primary public API, has O(N²) algorithmic complexity for inputs containing many fuzzy links or emails because the JavaScript-level sc…

  • High 7.5

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

    linkify-it is a links recognition library with full Unicode support. Prior to 5.0.2, the mailto: schema validator used by .test() and .match() can be invoked at every mailto: occurrence and scan the remaining input through src_email_name in lib/re.mjs, causin…