Cross-site Scripting (XSS) Affecting python-mistune package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.23% (14th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-RHEL9-PYTHONMISTUNE-17345642
  • published16 Jun 2026
  • disclosed26 May 2026

Introduced: 26 May 2026

CVE-2026-44708  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:9 python-mistune.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-mistune package and not the python-mistune package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

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 Base Scores

version 3.1