CVSS 3.1
5.4 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NCVE-2021-43861
Medium (5.4) in mermaid project mermaid. EPSS 0.9% chance of exploitation in the next 30 days. Fixed in mermaid 8.13.8.
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.
Severity
- EPSS
- 0.9% chance of exploitation in the next 30 days; higher than 60% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-20, CWE-79
- Published
- Modified
- Record from
- the NVD, synced
Affected
- mermaid_project:mermaid
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-p3rp-vmj9-gv6v | npm | mermaid | <8.13.8 | 8.13.8 |
References
- https://github.com/mermaid-js/mermaid/commit/066b7a0d0bda274d94a2f2d21e4323dab5776d83
- https://github.com/mermaid-js/mermaid/releases/tag/8.13.8
- https://github.com/mermaid-js/mermaid/security/advisories/GHSA-p3rp-vmj9-gv6v
- https://github.com/mermaid-js/mermaid/commit/066b7a0d0bda274d94a2f2d21e4323dab5776d83
- https://github.com/mermaid-js/mermaid/releases/tag/8.13.8