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    2 vulnerabilities found for linkify-it by markdown-it

    CVE-2026-59887 (GCVE-0-2026-59887)

    Vulnerability from nvd – Published: 2026-07-08 15:58 – Updated: 2026-07-09 14:41
    VLAI
    Title
    linkify-it: Quadratic-complexity DoS via the `mailto:` validator scan-loop on attacker text
    Summary
    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, causing O(n^2) CPU consumption on crafted user text. This issue is fixed in version 5.0.2.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-407 - Inefficient Algorithmic Complexity
    Assigner
    References
    Impacted products
    Vendor Product Version
    markdown-it linkify-it Affected: < 5.0.2
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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        "title": "CISA ADP Vulnrichment"
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    CVE-2026-59887 (GCVE-0-2026-59887)

    Vulnerability from cvelistv5 – Published: 2026-07-08 15:58 – Updated: 2026-07-09 14:41
    VLAI
    Title
    linkify-it: Quadratic-complexity DoS via the `mailto:` validator scan-loop on attacker text
    Summary
    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, causing O(n^2) CPU consumption on crafted user text. This issue is fixed in version 5.0.2.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-407 - Inefficient Algorithmic Complexity
    Assigner
    References
    Impacted products
    Vendor Product Version
    markdown-it linkify-it Affected: < 5.0.2
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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