CVE-2021-43861

December 30, 2021

Mermaid is a Javascript based diagramming and charting tool that uses Markdown-inspired text definitions and a renderer to create and modify complex diagrams. Prior to version 8.13.8, malicious diagrams can run javascript code at diagram readers’ machines. Users should upgrade to version 8.13.8 to receive a patch. There are no known workarounds aside from upgrading.

Summary:

Mermaid is a Javascript based diagramming and charting tool that uses Markdown-inspired text definitions and a renderer to create and modify complex diagrams. Prior to version 8.13.8, malicious diagrams can run javascript code at diagram readers’ machines. Users should upgrade to version 8.13.8 to receive a patch. There are no known workarounds aside from upgrading.

Reference Links(if available):

  • https://github.com/mermaid-js/mermaid/releases/tag/8.13.8
  • https://github.com/mermaid-js/mermaid/commit/066b7a0d0bda274d94a2f2d21e4323dab5776d83
  • https://github.com/mermaid-js/mermaid/security/advisories/GHSA-p3rp-vmj9-gv6v

  • CVSS Score (if available)

    v2: / MEDIUM

    v3: / HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

    Links to Exploits(if available)

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