Mermaid configuration APIs allow prototype pollution

Summary Mermaid's configuration setters mermaid.initialize, mermaidAPI.setConfig, and mermaidAPI.updateSiteConfig merge the caller-supplied configuration object into Mermaid's internal config using the assignWithDepth deep-merge helper that is vulnerable to prototype pollution. Because these APIs...

EUVD-2026-54244

Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. Prior to 10.9.8 and 11.16.1, Mermaid's configuration setters mermaid.initialize, mermaidAPI.setConfig, and mermaidAPI.updateSiteConfig merge caller-supplied configuration into Mermaid's interna...

CVE-2026-71436 Mermaid XY Charts are vulnerable to an infinite loop DoS

Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. From version 10.6.0 until 10.9.8 and 11.16.1, Mermaid XY Charts are vulnerable to an infinite loop denial of service in the setXAxisRangeData function when configuring an X-Axis with invalid...