6.1
Moyenne
CVE-2026-44897 Mistune is a Python Markdown parser with renderers and plugins
Description
Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.2.1, HTMLRenderer.heading() builds the opening <hN> tag by string-concatenating the id attribute value directly into the HTML — with no call to escape(), safe_entity(), or any other sanitisation function. A double-quote character " in the id value terminates the attribute, allowing an attacker to inject arbitrary additional attributes (event handlers, src=, href=, etc.) into the heading element. This vulnerability is fixed in 3.2.1.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| mistune 3.2 | premières → < 3.2.1 | 3.2.1 |
Références
- github.com github.com
- github.com github.com
Chronologie
- Publiée
- Dernière modification
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Les 28 CVE de mistune →
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