{"id":"CVE-2026-2327","details":"Versions of the package markdown-it from 13.0.0 and before 14.1.1 are vulnerable to Regular Expression Denial of Service (ReDoS) due to the use of the regex /\\*+$/ in the linkify function. An attacker can supply a long sequence of * characters followed by a non-matching character, which triggers excessive backtracking and may lead to a denial-of-service condition.","aliases":["GHSA-38c4-r59v-3vqw"],"modified":"2026-03-14T15:05:44.227543Z","published":"2026-02-12T06:16:02.243Z","related":["CGA-f3g2-68ff-2c28"],"references":[{"type":"WEB","url":"https://github.com/markdown-it/markdown-it/blob/14.1.0/lib/rules_inline/linkify.mjs%23L33"},{"type":"ADVISORY","url":"https://gist.github.com/ltduc147/c9abecae1b291ede4f692f2ab988c917"},{"type":"ADVISORY","url":"https://security.snyk.io/vuln/SNYK-JS-MARKDOWNIT-10666750"},{"type":"FIX","url":"https://github.com/markdown-it/markdown-it/commit/4b4bbcae5e0990a5b172378e507b33a59012ed26"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/markdown-it/markdown-it","events":[{"introduced":"6ec0b76ebe439f5858ae51d8e0cb45ee4a7ad46c"},{"fixed":"b4a9b659ef5734223731cfaa3ad5eacc6fc22918"},{"fixed":"4b4bbcae5e0990a5b172378e507b33a59012ed26"}],"database_specific":{"versions":[{"introduced":"13.0.0"},{"fixed":"14.1.1"}]}}],"versions":["13.0.0","13.0.1","13.0.2","14.0.0","14.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-2327.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}