{"action":"Upgrade mistune to 3.2.1 or later.","affected":[{"fixed":"3.2.1","introduced":"3.0.0a1"}],"component":"mistune","cve_ids":["CVE-2026-33079"],"ecosystem":"PyPI","epss":0.00592,"exploited":false,"fixed_versions":["3.2.1"],"ghsa_id":"GHSA-8mp2-v27r-99xp","id":"tcs_01M5KF8M56PBS865H71WYXRRV0","modified_at":"2026-09-10T03:51:05.039110483Z","published_at":"2026-05-06T16:52:43Z","references":["https://osv.dev/vulnerability/GHSA-8mp2-v27r-99xp","https://github.com/lepture/mistune/security/advisories/GHSA-8mp2-v27r-99xp","https://nvd.nist.gov/vuln/detail/CVE-2026-33079","https://github.com/lepture/mistune","https://github.com/lepture/mistune/blob/df23edd60b43b639d2e6760ef9dd3d618aa11c21/src/mistune/helpers.py#L20-L25"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-8mp2-v27r-99xp","url":"https://osv.dev/vulnerability/GHSA-8mp2-v27r-99xp"},{"source":"nvd","source_id":"CVE-2026-33079","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33079"}],"summary":"Mistune has a ReDoS in LINK_TITLE_RE that allows denial of service via crafted Markdown input"}