EUVD-2026-42330

Mistune toc / TableOfContents directive: heading IDs use predictable tocN numbering with no slugification, allowing collision with attacker-controlled id="tocN" content...

SUSE CVE-2026-59930

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 tocN values without slugifying the heading text, allowing attacker-controlled id="tocN" content to collide with generated anchors and...

CVE-2026-59930

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 tocN values without slugifying the heading text, allowing attacker-controlled id="tocN" content to collide with generated anchors and...

CVE-2026-59930 Mistune toc / TableOfContents directive: heading IDs use predictable `toc_N` numbering with no slugification, allowing collision with attacker-controlled `id="toc_N"` content

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 tocN values without slugifying the heading text, allowing attacker-controlled id="tocN" content to collide with generated anchors and...

PT-2026-56513

Name of the Vulnerable Software and Affected Versions Mistune versions prior to 3.3.0 Description The toc plugin and TableOfContents directive generate heading IDs using predictable toc N values instead of slugifying the heading text. This allows attacker-controlled content with id="toc N" to...

CVE-2026-44898 Mistune TOC Anchor Injection XSS

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.2.1, rendertocul builds a table-of-contents tree from a list of level, id, text tuples. Both the id value used as href="" and the text value used as the visible link label are inserted into tags via a plain Python format...

PT-2026-41146

Name of the Vulnerable Software and Affected Versions Mistune versions prior to 3.2.1 Description The render toc ul function builds a table-of-contents tree from a list of tuples. The id value, used for the href attribute, and the text value, used as the link label, are inserted into tags using a...