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CVE-2026-44896

MEDIUM(6.1)

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Risk Signal Score15/100 — NIEDRIG
  • CVSS 6.1 — Mittel

EPSS-Score

0%

Exploit-Wahrscheinlichkeit (30 Tage)

CVSS Score

6.1

Technische Schwere

Beschreibung

Mistune is a Python Markdown parser with renderers and plugins. In 3.2.0 and earlier, in src/mistune/directives/image.py, the render_figure() function concatenates figclass and figwidth options directly into HTML attributes without escaping. This allows attribute injection and XSS even when HTMLRenderer(escape=True) is used, because these values bypass the inline renderer. Version 3.2.1 contains a patch.

GitHub Advisories

GHSA-58cw-g322-p94vMEDIUM

Mistune has XSS via unescaped figclass/figwidth in Figure directive

pip/mistune3.2.1
GitHub Advisory

Referenzen