{"action":"Upgrade mistune to 3.3.0 or later.","affected":[{"fixed":"3.3.0","introduced":"0"}],"component":"mistune","cve_ids":["CVE-2026-59924"],"ecosystem":"PyPI","epss":0.00462,"exploited":false,"fixed_versions":["3.3.0"],"ghsa_id":"GHSA-r4rv-85jg-w4mf","id":"tcs_01M5KGY3XX6E09041HTRHB6X9B","modified_at":"2026-07-13T07:15:18.817309011Z","published_at":"2026-07-08T17:17:28.050Z","references":["https://osv.dev/vulnerability/PYSEC-2026-2212","https://github.com/lepture/mistune/releases/tag/v3.3.0","https://github.com/lepture/mistune/commit/1bef343ade163fc3bb95572b15be720084cdb993","https://github.com/lepture/mistune/security/advisories/GHSA-r4rv-85jg-w4mf"],"severity":{"label":"medium","score":5.9},"sources":[{"source":"osv","source_id":"PYSEC-2026-2212","url":"https://osv.dev/vulnerability/PYSEC-2026-2212"}],"summary":"Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, Include.parse() joins and normalizes user-supplied include paths without verifying that the result remains within the in"}