{"schema_version":1,"title":"Markdown-It vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 3 vulnerabilities in Markdown-It: 0 in the last 7 days and 3 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-111758, was published on 20 October 2026. 2 vulnerabilities in the last four weeks, up 100% on the four before (1).","url":"https://junglewise.ai/threats/technologies/markdown-it-markdown-it","json_url":"https://junglewise.ai/threats/technologies/markdown-it-markdown-it.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/markdown-it-markdown-it","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","thin":true,"counts":{"high":2,"all_time":3,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":2,"last_90_days":3,"last_365_days":3},"latest":[{"cve":"CVE-2026-111758","cvss":7.5,"epss":0.0046,"slug":"cve-2026-111758-markdown-it-quadratic-time-rendering-of-a-single-multi-line-link","title":"markdown-it quadratic-time rendering of unclosed link reference","severity":"high","exploited":false,"published_at":"2026-10-20T21:17:17.11+00:00","url":"https://junglewise.ai/threats/cve-2026-111758-markdown-it-quadratic-time-rendering-of-a-single-multi-line-link"},{"cve":"CVE-2026-111759","cvss":7.5,"epss":0.006,"slug":"cve-2026-111759-markdown-it-is-a-markdown-parser-prior-to-14-3-2-and-15-0-2-when","title":"markdown-it quadratic ReDoS in smartquotes","severity":"high","exploited":false,"published_at":"2026-10-19T18:17:00.57+00:00","url":"https://junglewise.ai/threats/cve-2026-111759-markdown-it-is-a-markdown-parser-prior-to-14-3-2-and-15-0-2-when"},{"slug":"markdown-it-linkify-true-has-two-quadratic-paths-so-a-few-hundred-kb-of-a1cf8480","title":"markdown-it quadratic performance degradation in linkify processing","severity":"medium","exploited":false,"published_at":"2026-09-29T17:57:56+00:00","url":"https://junglewise.ai/threats/markdown-it-linkify-true-has-two-quadratic-paths-so-a-few-hundred-kb-of-a1cf8480"}],"weekly":[{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-28","critical":0,"exploited":0,"vulnerabilities":1},{"week":"2026-10-05","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-12","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-10-19","critical":0,"exploited":0,"vulnerabilities":2},{"week":"2026-10-26","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-11-02","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-11-09","critical":0,"exploited":0,"vulnerabilities":0}],"related":[],"technology":{"hub":true,"name":"Markdown-It","slug":"markdown-it-markdown-it","vendor":{"hub":true,"name":"Markdown-It","slug":"markdown-it","url":"https://junglewise.ai/threats/vendors/markdown-it"},"aliases":[],"category":"library","description":"JavaScript library that parses Markdown text into HTML with support for plugins and custom rules.","url":"https://junglewise.ai/threats/technologies/markdown-it-markdown-it"},"most_severe":[{"cve":"CVE-2026-111759","cvss":7.5,"epss":0.006,"slug":"cve-2026-111759-markdown-it-is-a-markdown-parser-prior-to-14-3-2-and-15-0-2-when","title":"markdown-it quadratic ReDoS in smartquotes","severity":"high","exploited":false,"published_at":"2026-10-19T18:17:00.57+00:00","url":"https://junglewise.ai/threats/cve-2026-111759-markdown-it-is-a-markdown-parser-prior-to-14-3-2-and-15-0-2-when"},{"cve":"CVE-2026-111758","cvss":7.5,"epss":0.0046,"slug":"cve-2026-111758-markdown-it-quadratic-time-rendering-of-a-single-multi-line-link","title":"markdown-it quadratic-time rendering of unclosed link reference","severity":"high","exploited":false,"published_at":"2026-10-20T21:17:17.11+00:00","url":"https://junglewise.ai/threats/cve-2026-111758-markdown-it-quadratic-time-rendering-of-a-single-multi-line-link"},{"slug":"markdown-it-linkify-true-has-two-quadratic-paths-so-a-few-hundred-kb-of-a1cf8480","title":"markdown-it quadratic performance degradation in linkify processing","severity":"medium","exploited":false,"published_at":"2026-09-29T17:57:56+00:00","url":"https://junglewise.ai/threats/markdown-it-linkify-true-has-two-quadratic-paths-so-a-few-hundred-kb-of-a1cf8480"}],"generated_at":"2026-11-09T03:07:00.176479+00:00"}