{"id":"CVE-2021-43308","details":"An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the markdown-link-extractor npm package, when an attacker is able to supply arbitrary input to the module's exported function","aliases":["GHSA-mmh6-m7v9-5956"],"modified":"2026-07-09T05:45:32.067959Z","published":"2022-06-02T14:15:31.047Z","references":[{"type":"EVIDENCE","url":"https://research.jfrog.com/vulnerabilities/markdown-link-extractor-redos-xray-211350/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/tcort/markdown-link-extractor","events":[{"introduced":"0"},{"fixed":"aab659c50ae3e5459584dd0944f7c1489b03a4c0"},{"introduced":"d31d69333fb2654a4b02ffdc28a9ba18d13b420d"},{"last_affected":"d31d69333fb2654a4b02ffdc28a9ba18d13b420d"}],"database_specific":{"cpe":["cpe:2.3:a:markdown-link-extractor_project:markdown-link-extractor:*:*:*:*:*:node.js:*:*","cpe:2.3:a:markdown-link-extractor_project:markdown-link-extractor:4.0.0:*:*:*:*:node.js:*:*"],"extracted_events":[{"introduced":"0"},{"fixed":"3.0.2"},{"introduced":"4.0.0"},{"last_affected":"4.0.0"}],"source":["CPE_RANGE","CPE_STRING"]}}],"versions":["4.0.0","v3.0.1","v3.0.0","v4.0.0","v2.0.1","v2.0.0","v1.3.1","v1.3.0","v1.2.7","v1.2.6","v1.2.5","v1.2.3","v1.2.2","v1.2.1","v1.2.0","v1.1.2","v1.1.1","v1.1.0","v1.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-43308.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"}]}