{"action":"Upgrade markdown-it to 14.3.3 or later.","affected":[{"fixed":"14.3.3","introduced":"0"},{"fixed":"15.0.3","introduced":"15.0.0"}],"component":"markdown-it","cve_ids":["CVE-2026-111766"],"ecosystem":"npm","exploited":false,"fixed_versions":["14.3.3","15.0.3"],"ghsa_id":"GHSA-vfgh-jcmw-g37q","id":"tcs_01M5JK8X46PMTJF2Q6G517EVXD","modified_at":"2026-10-20T20:15:05.220039200Z","published_at":"2026-10-20T20:08:19Z","references":["https://osv.dev/vulnerability/GHSA-vfgh-jcmw-g37q","https://github.com/markdown-it/markdown-it/security/advisories/GHSA-vfgh-jcmw-g37q","https://nvd.nist.gov/vuln/detail/CVE-2026-111766","https://github.com/markdown-it/markdown-it/commit/928bc8c11ded60181c0e7fc5aa954eec582e8e79","https://github.com/markdown-it/markdown-it/commit/d99f48839d37af6fd8a2617516c43dab90755503","https://github.com/markdown-it/markdown-it","https://github.com/markdown-it/markdown-it/releases/tag/14.3.3","https://github.com/markdown-it/markdown-it/releases/tag/15.0.3"],"severity":{"label":"low","score":3.7},"sources":[{"source":"osv","source_id":"GHSA-vfgh-jcmw-g37q","url":"https://osv.dev/vulnerability/GHSA-vfgh-jcmw-g37q"}],"summary":"markdown-it: Quadratic-time denial of service in inline HTML parsing with html enabled"}