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    CVE-2026-44708

    Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.2.1, the mistune math plugin renders inline math ($...$) and block math ($$...$$) by concatenating the raw user-supplied content directly into the HTML output without any HTML escaping. This occurs even when the parser is explicitly created with escape=True, which is supposed to guarantee that all user-controlled text is sanitised before reaching the DOM. This vulnerability is fixed in 3.2.1.

    Published:May 26, 2026
    Last Modified:May 28, 2026
    EPS:May 26, 2026
    EPSS Score:0.00029
    CVSS Score:6.1

    Affected Products

    Vendor
    Lepture
    Product
    Mistune
    Vendor
    Mistune Project
    Product
    Mistune

    Exploits

    https://github.com/lepture/mistune/security/advisories/GHSA-8g87-j6q8-g93xhttps://github.com/lepture/mistune/security/advisories/GHSA-8g87-j6q8-g93x

    Related CVEs

    CVE-2026-76098 (CVSS 7.5) — Mistune is a Python Markdown parser with renderers and plugins. Versions 3.3.0 through 3.3.2 are vulnerable to…
    CVE-2026-59927 (CVSS 5.3) — Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, the Include directive in src/m…
    CVE-2026-59928 (CVSS 7.5) — Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, a Markdown document containing…
    CVE-2026-59924 (CVSS 5.9) — Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, Include.parse() joins and norm…
    CVE-2026-59929 (CVSS 6.1) — Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, the safe_url filter in src/mis…
    CVE-2026-59925 (CVSS 7.5) — Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, long sequences of well-formed …
    CVE-2026-59926 (CVSS 5.3) — Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.2.1, render_admonition() in src/mis…
    CVE-2026-59923 (CVSS 6.1) — Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, HTMLRenderer.safe_url() does n…
    CVE-2026-59930 (CVSS 4.3) — Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, the toc plugin and TableOfCont…
    CVE-2026-59922 (CVSS 7.5) — Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, a run of closed tilde, equals-…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High