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CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2026-71439

Mermaid radar diagrams are vulnerable to DoS

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

mermaid-js mermaid

  • >= 11.6.0, < 11.16.1affected

References