PT-2026-56513 · Lepture · Mistune

Publicado 2026-07-08 · Atualizado 2026-07-08 · CVE-2026-59930

NVD

CVSS v3.1

4.3

Média

Vetor base

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

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.

Correção

Insufficient Verification of Data Authenticity

Enumeração de Fraquezas

CWE-345

CWE-1284

Identificadores relacionados

CVE-2026-59930

Produtos afetados

Mistune

Referências · 4

• https://github.com/lepture/mistune/releases/tag/v3.3.0 · Nota
• https://github.com/lepture/mistune/commit/c4093c4742ed0d10d9332fb8edb455869b7b581b · Nota
• https://github.com/lepture/mistune/security/advisories/GHSA-2hm2-hc3v-44h9 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-59930 · Nota de Segurança