{"action":"Upgrade marked to 2.0.0 or later.","affected":[{"fixed":"2.0.0","introduced":"1.1.1"}],"component":"marked","cve_ids":["CVE-2021-21306"],"ecosystem":"npm","epss":0.02462,"exploited":false,"fixed_versions":["2.0.0"],"ghsa_id":"GHSA-4r62-v4vq-hr96","id":"tcs_01M5KF1AHAN3CYPFZPNV4H0XJ7","modified_at":"2026-09-10T03:49:13.926993251Z","published_at":"2021-02-08T21:17:58Z","references":["https://osv.dev/vulnerability/GHSA-4r62-v4vq-hr96","https://github.com/markedjs/marked/security/advisories/GHSA-4r62-v4vq-hr96","https://nvd.nist.gov/vuln/detail/CVE-2021-21306","https://github.com/markedjs/marked/issues/1927","https://github.com/markedjs/marked/pull/1864","https://github.com/markedjs/marked/commit/7293251c438e3ee968970f7609f1a27f9007bccd","https://www.npmjs.com/package/marked"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"GHSA-4r62-v4vq-hr96","url":"https://osv.dev/vulnerability/GHSA-4r62-v4vq-hr96"}],"summary":"Regular Expression Denial of Service (REDoS) in Marked"}