CVE-2021-21306

Marked is an open-source markdown parser and compiler (npm package "marked"). In marked from version 1.1.1 and before version 2.0.0, there is a Regular expression Denial of Service vulnerability. This vulnerability can affect anyone who runs user generated code through marked. This vulnerability is fixed in version 2.0.0.

• CWE-400
• CWE-400

• https://github.com/markedjs/marked/commit/7293251c438e3ee968970f7609f1a27f9007bccdPatch, Third Party Advisory
• https://github.com/markedjs/marked/issues/1927Third Party Advisory
• https://github.com/markedjs/marked/pull/1864Patch, Third Party Advisory
• https://github.com/markedjs/marked/security/advisories/GHSA-4r62-v4vq-hr96Third Party Advisory
• https://www.npmjs.com/package/markedProduct, Third Party Advisory
• https://github.com/markedjs/marked/commit/7293251c438e3ee968970f7609f1a27f9007bccdPatch, Third Party Advisory
• https://github.com/markedjs/marked/issues/1927Third Party Advisory
• https://github.com/markedjs/marked/pull/1864Patch, Third Party Advisory
• https://github.com/markedjs/marked/security/advisories/GHSA-4r62-v4vq-hr96Third Party Advisory
• https://www.npmjs.com/package/markedProduct, Third Party Advisory

Published

Feb 8, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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