CVE-2026-71439
Mermaid radar diagrams are vulnerable to DoS
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-606 CWE-1322 |
| Vendor | mermaid-js |
| Product | mermaid |
| Published | Aug 6, 2026 |
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Affected Versions
mermaid-js / mermaid
>= 11.6.0, < 11.16.1
References
github.com: https://github.com/mermaid-js/mermaid/security/advisories/GHSA-rhh3-jpg6-66xh github.com: https://github.com/mermaid-js/mermaid/pull/8022 github.com: https://github.com/mermaid-js/mermaid/commit/59b22fad2b3bb04f87a476c84a8a2b24679e607e github.com: https://github.com/mermaid-js/mermaid/releases/tag/mermaid%4011.16.1