{"action":"Upgrade mistune to 3.3.0 or later.","affected":[{"fixed":"3.3.0","introduced":"0"}],"component":"mistune","cve_ids":["CVE-2026-59925"],"ecosystem":"PyPI","epss":0.00644,"exploited":false,"fixed_versions":["3.3.0"],"ghsa_id":"GHSA-4j32-57v6-6g45","id":"tcs_01M5KGY4275F3082Y3AMDWKG8A","modified_at":"2026-07-13T07:15:18.858108495Z","published_at":"2026-07-08T17:17:28.183Z","references":["https://osv.dev/vulnerability/PYSEC-2026-2213","https://github.com/lepture/mistune/releases/tag/v3.3.0","https://github.com/lepture/mistune/commit/5de41fb8e527004dbc363e047a3c380c9288c74f","https://github.com/lepture/mistune/security/advisories/GHSA-4j32-57v6-6g45"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"PYSEC-2026-2213","url":"https://osv.dev/vulnerability/PYSEC-2026-2213"}],"summary":"Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, long sequences of well-formed double-asterisk or triple-asterisk emphasis pairs around a character cause quadratic work"}