{"action":"Upgrade mistune to 3.1.4-1 or later.","affected":[{"fixed":"3.1.4-1","introduced":"0"}],"component":"mistune","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["3.1.4-1"],"id":"tcs_01M5NT6E8Z3HYYVPASSJ81ZT3J","modified_at":"2026-10-26T11:47:24.567988734Z","published_at":"2026-07-08T17:17:28.323Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-59926","https://security-tracker.debian.org/tracker/CVE-2026-59926"],"severity":{"label":"medium","score":6.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-59926#Debian:14/mistune","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-59926"}],"summary":"Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.2.1, render_admonition() in src/mistune/directives/admonition.py concatenates the Admonition directive :class: option into th"}