Bug 2481733 (CVE-2026-44708) - CVE-2026-44708 python-mistune: Mistune: Cross-Site Scripting via improper HTML escaping in math plugin
Summary: CVE-2026-44708 python-mistune: Mistune: Cross-Site Scripting via improper HTM...
Keywords:
Status: NEW
Alias: CVE-2026-44708
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-26 22:02 UTC by OSIDB Bzimport
Modified: 2026-06-15 12:53 UTC (History)
14 users (show)

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Description OSIDB Bzimport 2026-05-26 22:02:32 UTC 
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.
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