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glama

mermaid-mcp-server

A lightweight MCP server that provides real-time Mermaid diagram syntax validation with support for all diagram types.

→ FreePeak/mermaid-mcp-server· listed on glama
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// key findings
⚠️
Known vulnerabilities in dependencies: 3 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
✅
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
✅
Open source with a license and README
Anyone can audit the code, the license is declared, and the publisher documents what it does.
// known CVEs in dependencies3 high3 medium1 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

high@modelcontextprotocol/sdk@0.4.0GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@0.4.0GHSA-w48q-cv73-mx4w

Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

highmermaid@10.6.1GHSA-m4gq-x24j-jpmf

Prototype pollution vulnerability found in Mermaid's bundled version of DOMPurify

mediummermaid@10.6.1GHSA-87f9-hvmw-gh4p

Mermaid: Improper sanitization of configuration leads to CSS injection

mediummermaid@10.6.1GHSA-ghcm-xqfw-q4vr

Mermaid: Improper sanitization of `classDef` in state diagrams leads to HTML injection

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// full audit trail
The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.
// improvement guidance — verified publishers only
We have 4 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
[![M8ven Score](https://m8ven.ai/badge/mcp/freepeak-mermaid-mcp-server-x07ml5)](https://m8ven.ai/mcp/freepeak-mermaid-mcp-server-x07ml5)
commit: a06da983d1952ee103fcfd8d43cca9bf287a1119
code hash: 0c3de0e97d08aa8c02011fe808cb8e559144c74cd73f818813e7b5e846e2c1be
verified: 6/18/2026, 10:52:49 AM
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