Vulnerability Description
Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. From version 11.6.0 until 11.16.1, Mermaid Radar Diagrams allow arbitrary large values for the ticks parameter, which can cause high CPU usage and freeze the rendering webpage or JavaScript process for long periods of time, potentially until the process is killed from memory exhaustion. This issue is fixed in version 11.16.1.
Related Weaknesses (CWE)
References
- https://github.com/mermaid-js/mermaid/commit/59b22fad2b3bb04f87a476c84a8a2b24679
- https://github.com/mermaid-js/mermaid/pull/8022
- https://github.com/mermaid-js/mermaid/releases/tag/mermaid%4011.16.1
- https://github.com/mermaid-js/mermaid/security/advisories/GHSA-rhh3-jpg6-66xh
FAQ
What is CVE-2026-71439?
CVE-2026-71439 is a documented vulnerability. Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. From version 11.6.0 until 11.16.1, Mermaid Radar Diagrams allow arbitrary large values for the t...
How severe is CVE-2026-71439?
CVSS scoring is not yet available for CVE-2026-71439. Check NVD for updates.
Is there a patch for CVE-2026-71439?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.