CVE-2026-59930

Publié : 8 juillet 2026

Modifié : 8 juillet 2026

Score CVSS

4.3

MEDIUM

Description détaillée

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, the toc plugin and TableOfContents directive generate heading IDs as predictable toc_N values without slugifying the heading text, allowing attacker-controlled id="toc_N" content to collide with generated anchors and redirect same-page navigation, CSS selectors, or JavaScript handlers. This issue is fixed in version 3.3.0.

Vecteur d'attaque (CVSS)

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

Références et Patchs

https://github.com/lepture/mistune/commit/c4093c4742ed0d10d9332fb8edb455869b7b581b https://github.com/lepture/mistune/releases/tag/v3.3.0 https://github.com/lepture/mistune/security/advisories/GHSA-2hm2-hc3v-44h9

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