{"action":"Upgrade mistune to 3.3.0 or later.","affected":[{"fixed":"3.3.0","introduced":"0"}],"component":"mistune","cve_ids":["CVE-2026-49851"],"ecosystem":"PyPI","epss":0.0063,"exploited":false,"fixed_versions":["3.3.0"],"ghsa_id":"GHSA-qcq2-496w-v96p","id":"tcs_01M5KFVWH842SM1T3SW39M4MMX","modified_at":"2026-09-10T03:51:11.807497442Z","published_at":"2026-07-09T23:52:27Z","references":["https://osv.dev/vulnerability/GHSA-qcq2-496w-v96p","https://github.com/lepture/mistune/security/advisories/GHSA-qcq2-496w-v96p","https://nvd.nist.gov/vuln/detail/CVE-2026-49851","https://access.redhat.com/security/cve/CVE-2026-49851","https://bugzilla.redhat.com/show_bug.cgi?id=2492304","https://github.com/lepture/mistune","https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-49851.json"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-qcq2-496w-v96p","url":"https://osv.dev/vulnerability/GHSA-qcq2-496w-v96p"}],"summary":"Mistune: Potential DoS via quadratic-time parsing in parse_link_text"}