Community MCP server for the Cymulate security validation platform. It exposes the full Cymulate REST API (337 endpoints) as 106 semantic tools for BAS, exposure validation, attack surface management, and platform administration.
Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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lyonzin
Source: Glama
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Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse
Anthropic's MCP TypeScript SDK has a ReDoS vulnerability
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
undici vulnerable to cross-user information disclosure and parse-time crash via degenerate private cache directives
Undici: Malicious WebSocket 64-bit length overflows parser and crashes the client
All four hints declared on every tool
119/120 tools missing one or more hints — cymulate_advanced_list_templates (missing: destructiveHint, openWorldHint); cymulate_advanced_get_template (missing: destructiveHint, openWorldHint); cymulate_advanced_create_assessment (missing: idempotentHint), +116 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Tool inputs are validated
83/120 tool handlers declare input schemas (69%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tool handlers catch errors
117/120 tool handlers wrap calls in try/catch (98%)
Wrap each tool handler body in try/catch and return a structured error response.
Tests exist
No test files found
Add tests that exercise each declared tool.
Shell command execution
1 child_process call — runs shell commands
Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.
Production dependencies are patched
0 critical, 8 high severity in production deps — @modelcontextprotocol/sdk@1.20.0 (high), @modelcontextprotocol/sdk@1.20.0 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
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