Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mistune Project | Mistune | < 3.2.1 |
Related Weaknesses (CWE)
References
- https://github.com/lepture/mistune/releases/tag/v3.2.1ProductRelease Notes
- https://github.com/lepture/mistune/security/advisories/GHSA-8g87-j6q8-g93xExploitVendor Advisory
- https://github.com/lepture/mistune/security/advisories/GHSA-8g87-j6q8-g93xExploitVendor Advisory
FAQ
What is CVE-2026-44708?
CVE-2026-44708 is a vulnerability with a CVSS score of 6.1 (MEDIUM). 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 cont...
How severe is CVE-2026-44708?
CVE-2026-44708 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-44708?
Check the references section above for vendor advisories and patch information. Affected products include: Mistune Project Mistune.