{"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":0.0052,"exploited":false,"fixed_versions":["3.3.0"],"ghsa_id":"GHSA-qcq2-496w-v96p","id":"tcs_01M5KH0R4JWTHDGA9SGT0HB7HH","modified_at":"2026-07-13T16:31:51.196638693Z","published_at":"2026-07-13T15:46:30.641314Z","references":["https://osv.dev/vulnerability/PYSEC-2026-2652","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","https://pypi.org/project/mistune","https://github.com/advisories/GHSA-qcq2-496w-v96p"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"PYSEC-2026-2652","url":"https://osv.dev/vulnerability/PYSEC-2026-2652"}],"summary":"Mistune: Potential DoS via quadratic-time parsing in parse_link_text"}