CVEvulnerability

CVE-2026-76098

7.5 HIGH Published 2026-08-24 Modified 2026-10-12 Official page ↗
Status
Deferred
Published
2026-08-24
Last modified
2026-10-12
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-674

Description

Mistune is a Python Markdown parser with renderers and plugins. Versions 3.3.0 through 3.3.2 are vulnerable to DoS through deeply nested tokens. HTML rendering creates deeply nested emphasis tokens from consecutive asterisk characters, and recursive rendering in HTMLRenderer.render_token() can exceed Python's recursion limit and raise RecursionError, allowing crafted Markdown to crash a parsing process. This issue is fixed in version 3.3.3

Related

Weakness · CWE (1)

  • CWE-674 Uncontrolled Recursion weakness

References