VHGENGINE — the complete, unedited output of the deterministic mcptrustchecker engine v1.13.0, scanned . Every finding, capability tag and score component below is exactly what the engine produced — no AI, no post-processing.
{
"tool": {
"name": "mcptrustchecker",
"version": "1.13.0",
"methodologyVersion": "mcptrustchecker-1.13"
},
"target": {
"id": "https://engine-production-3bdc.up.railway.app/mcp",
"source": {
"kind": "http",
"origin": "https://engine-production-3bdc.up.railway.app/mcp"
},
"server": {
"name": "vhgengine",
"version": "3.2.0"
}
},
"grade": "A",
"score": {
"score": 94,
"threatScore": 100,
"grade": "A",
"band": "A",
"categorySubtotals": {
"injection": 0,
"exfiltration": 0,
"permissions": 0,
"supply-chain": 0,
"network": 0,
"hygiene": 0
},
"vector": [
{
"kind": "client",
"term": "capability-exposure",
"level": "high",
"label": "capability blast radius (high) — client exposure if the model is manipulated",
"appliedPenalty": 6
},
{
"kind": "client",
"term": "coverage-honesty",
"level": "live",
"label": "inspection depth (live) — how much of the target the scan could see",
"appliedPenalty": 0
}
],
"gatesFired": [],
"methodologyVersion": "mcptrustchecker-1.13"
},
"capability": {
"level": "high",
"reasons": [
"ingests untrusted external content (a prompt-injection entry point)",
"can send data / act on an external service",
"reads sensitive or local data",
"has a read → egress path (a data-exfiltration surface)",
"untrusted-input, sensitive-source and egress co-exist across tools (toxic-flow surface)"
],
"tags": [
"sensitive-source",
"untrusted-input",
"external-sink"
]
},
"coverage": {
"level": "live",
"inputs": {
"toolSurface": true,
"implementationSource": false,
"packageMetadata": false,
"liveTransport": true
},
"caveats": []
},
"findings": [
{
"ruleId": "MTC-FLOW-002",
"title": "Completed toxic-flow trifecta across tools",
"category": "exfiltration",
"severity": "critical",
"confidence": "strong",
"description": "This server (without client built-ins) exposes a complete data-exfiltration chain: get_hook → list_keys → delete_webhook. Untrusted input is ingested, private data is read, and it can be sent to an external sink via the agent composing the tools (→). Static analysis proves the primitive exists, not that a specific run will occur.",
"remediation": "Remove one leg of the trifecta: isolate untrusted-input tools from secret-reading tools and from egress tools, or require human approval between them.",
"location": {
"kind": "flow",
"name": "get_hook → list_keys → delete_webhook"
},
"owasp": "LLM02:2025 Sensitive Information Disclosure",
"references": [],
"data": {
"untrusted": [
"get_hook"
],
"sources": [
"list_keys",
"revoke_key"
],
"sinks": [
"set_webhook",
"delete_webhook",
"redrive_webhook_delivery"
],
"path": [
"get_hook",
"list_keys",
"delete_webhook"
],
"edges": [
{
"from": "get_hook",
"to": "list_keys",
"kind": "agent-mediated"
},
{
"from": "list_keys",
"to": "delete_webhook",
"kind": "agent-mediated"
}
],
"wired": false
}
},
{
"ruleId": "MTC-CAP-007",
"title": "Unconstrained URL/host parameter \"url\" on \"set_webhook\"",
"category": "network",
"severity": "medium",
"confidence": "heuristic",
"description": "Tool \"set_webhook\" takes a URL/host parameter \"url\" with no allowlist/pattern. An outbound-request tool with an unbounded destination enables SSRF and cloud-metadata access (e.g. 169.254.169.254).",
"remediation": "Allowlist destinations or constrain the parameter; block private/link-local addresses server-side.",
"location": {
"kind": "tool",
"name": "set_webhook",
"field": "inputSchema.properties.url"
},
"owasp": "LLM06:2025 Excessive Agency",
"data": {
"param": "url"
}
},
{
"ruleId": "MTC-NET-005",
"title": "Remote HTTP MCP endpoint",
"category": "network",
"severity": "info",
"confidence": "strong",
"description": "Remote endpoint engine-production-3bdc.up.railway.app. MCP Trust Checker does not test server-side authentication/authorization; verify the endpoint requires auth.",
"location": {
"kind": "transport"
}
}
],
"toxicFlows": [
{
"id": "flow-1",
"severity": "critical",
"confidence": "strong",
"untrustedInput": [
"get_hook"
],
"sensitiveSource": [
"list_keys",
"revoke_key"
],
"externalSink": [
"set_webhook",
"delete_webhook",
"redrive_webhook_delivery"
],
"selfContained": false,
"path": [
"get_hook",
"list_keys",
"delete_webhook"
],
"pathWired": false,
"description": "A cross-tool exfiltration chain exists: get_hook → list_keys → delete_webhook."
}
],
"capabilities": [
{
"tool": "signup",
"tags": [],
"reasons": {}
},
{
"tool": "getting_started",
"tags": [],
"reasons": {}
},
{
"tool": "list_archetypes",
"tags": [],
"reasons": {}
},
{
"tool": "pricing",
"tags": [],
"reasons": {}
},
{
"tool": "get_estimates",
"tags": [],
"reasons": {}
},
{
"tool": "health",
"tags": [],
"reasons": {}
},
{
"tool": "get_account",
"tags": [],
"reasons": {}
},
{
"tool": "get_usage",
"tags": [],
"reasons": {}
},
{
"tool": "export_usage",
"tags": [],
"reasons": {}
},
{
"tool": "list_runs",
"tags": [],
"reasons": {}
},
{
"tool": "quote",
"tags": [],
"reasons": {}
},
{
"tool": "add_credits",
"tags": [],
"reasons": {}
},
{
"tool": "list_billing_events",
"tags": [],
"reasons": {}
},
{
"tool": "create_checkout",
"tags": [],
"reasons": {}
},
{
"tool": "create_creator_profile",
"tags": [],
"reasons": {}
},
{
"tool": "list_creator_profiles",
"tags": [],
"reasons": {}
},
{
"tool": "get_creator_profile",
"tags": [],
"reasons": {}
},
{
"tool": "update_creator_profile",
"tags": [],
"reasons": {}
},
{
"tool": "delete_creator_profile",
"tags": [],
"reasons": {}
},
{
"tool": "create_key",
"tags": [],
"reasons": {}
},
{
"tool": "list_keys",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"list_keys\""
]
}
},
{
"tool": "revoke_key",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"list_keys\""
]
}
},
{
"tool": "delete_account",
"tags": [],
"reasons": {}
},
{
"tool": "research_hook_evidence",
"tags": [],
"reasons": {}
},
{
"tool": "synthesize_hooks",
"tags": [],
"reasons": {}
},
{
"tool": "generate_hooks",
"tags": [],
"reasons": {}
},
{
"tool": "generate_hooks_batch",
"tags": [],
"reasons": {}
},
{
"tool": "score_hook",
"tags": [],
"reasons": {}
},
{
"tool": "score_hooks_batch",
"tags": [],
"reasons": {}
},
{
"tool": "remix_hook",
"tags": [],
"reasons": {}
},
{
"tool": "list_hooks",
"tags": [],
"reasons": {}
},
{
"tool": "get_hook",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"fetch\""
]
}
},
{
"tool": "list_outcomes",
"tags": [],
"reasons": {}
},
{
"tool": "report_outcome",
"tags": [],
"reasons": {}
},
{
"tool": "start_generate_job",
"tags": [],
"reasons": {}
},
{
"tool": "get_job",
"tags": [],
"reasons": {}
},
{
"tool": "wait_for_job",
"tags": [],
"reasons": {}
},
{
"tool": "cancel_job",
"tags": [],
"reasons": {}
},
{
"tool": "list_jobs",
"tags": [],
"reasons": {}
},
{
"tool": "set_webhook",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"webhook\""
]
}
},
{
"tool": "get_webhook",
"tags": [],
"reasons": {}
},
{
"tool": "delete_webhook",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"webhook\""
]
}
},
{
"tool": "list_webhook_deliveries",
"tags": [],
"reasons": {}
},
{
"tool": "redrive_webhook_delivery",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"webhook\""
]
}
},
{
"tool": "get_activity",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "d8b65bf8d666f01833ec43440635780e36a0bdcdb7926bbbea98ecbcc83fa2ec",
"stats": {
"tools": 45,
"prompts": 0,
"resources": 14,
"findingsBySeverity": {
"critical": 1,
"high": 0,
"medium": 1,
"low": 0,
"info": 1
}
}
}