{"id":"CVE-2022-21670","summary":"Uncontrolled Resource Consumption in markdown-it","details":"markdown-it is a Markdown parser. Prior to version 1.3.2, special patterns with length greater than 50 thousand characterss could slow down the parser significantly. Users should upgrade to version 12.3.2 to receive a patch. There are no known workarounds aside from upgrading.","aliases":["GHSA-6vfc-qv3f-vr6c"],"modified":"2026-04-02T07:44:55.177465Z","published":"2022-01-10T20:40:10Z","database_specific":{"cwe_ids":["CWE-400"],"cna_assigner":"GitHub_M","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/21xxx/CVE-2022-21670.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/21xxx/CVE-2022-21670.json"},{"type":"ADVISORY","url":"https://github.com/markdown-it/markdown-it/security/advisories/GHSA-6vfc-qv3f-vr6c"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-21670"},{"type":"FIX","url":"https://github.com/markdown-it/markdown-it/commit/ffc49ab46b5b751cd2be0aabb146f2ef84986101"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/markdown-it/markdown-it","events":[{"introduced":"0"},{"fixed":"d72c68b520cedacae7878caa92bf7fe32e3e0e6f"}]}],"versions":["10.0.0","11.0.0","11.0.1","12.0.0","12.0.1","12.0.2","12.0.3","12.0.4","12.0.5","12.0.6","12.1.0","12.2.0","12.3.0","12.3.1","2.0.0","2.1.0","2.1.1","2.1.2","2.1.3","2.2.0","2.2.1","3.0.0","3.0.1","3.0.2","3.0.3","3.0.4","3.0.5","3.0.6","3.0.7","3.1.0","4.0.0","4.0.1","4.0.2","4.0.3","4.1.0","4.1.1","4.1.2","4.2.0","4.2.1","4.2.2","4.3.0","4.3.1","4.4.0","5.0.0","5.0.1","5.0.2","5.0.3","5.1.0","6.0.0","6.0.1","6.0.2","6.0.3","6.0.4","6.0.5","6.1.0","6.1.1","7.0.0","7.0.1","8.0.0","8.0.1","8.1.0","8.2.0","8.2.1","8.2.2","8.3.0","8.3.1","8.3.2","8.4.0","8.4.1","8.4.2","9.0.0","9.0.1","9.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-21670.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:L"}]}