Chrome Enterprise Premium — 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": "@google/chrome-enterprise-premium-mcp",
"source": {
"kind": "package",
"origin": "@google/chrome-enterprise-premium-mcp"
},
"server": {
"name": "@google/chrome-enterprise-premium-mcp"
}
},
"grade": "A",
"score": {
"score": 93,
"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": "verification-discount",
"level": "repo",
"label": "publisher verification (public source) — no provenance, but the source is public and inspectable",
"appliedPenalty": 1
},
{
"kind": "client",
"term": "coverage-honesty",
"level": "source",
"label": "inspection depth (source) — 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",
"can execute shell commands or code"
],
"tags": [
"untrusted-input",
"code-exec",
"external-sink"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (49 recovered), not enumerated from a running server. Tool-poisoning, Unicode-smuggling, capability and toxic-flow analysis ran on this inferred surface, but a mis-parsed registration could be missed or mis-attributed, so tool-derived findings are capped below “confirmed”. To grade the real runtime surface, scan the running server: --command \"npx -y <package>\"."
]
},
"findings": [
{
"ruleId": "MTC-SRC-002",
"title": "Shell/command execution in server code (lib/util/cli_invocation.js)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`lib/util/cli_invocation.js:28`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.",
"remediation": "Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.",
"location": {
"kind": "server",
"name": "lib/util/cli_invocation.js"
},
"evidence": "ecFileSync } from 'node:child_process' const BIN_NAME = 'chrome-enterprise-premium-mcp' const NPX_FORM = `npx -y @googl",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "lib/util/cli_invocation.js",
"line": 28,
"nonRuntime": false
}
},
{
"ruleId": "MTC-SRC-003",
"title": "Hardcoded egress to an external endpoint (lib/util/gcp.js)",
"category": "exfiltration",
"severity": "medium",
"confidence": "strong",
"description": "In the server's implementation (`lib/util/gcp.js:53`): A hardcoded outbound call to a fixed external host inside server code is a classic exfiltration/telemetry channel — especially paired with reads of local data. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.",
"remediation": "Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.",
"location": {
"kind": "server",
"name": "lib/util/gcp.js"
},
"evidence": "const response = await axios.get(`http://metadata.google.internal${path}`, { headers: { 'Metadata-Flavor': 'G",
"owasp": "LLM02:2025 Sensitive Information Disclosure",
"data": {
"rule": "MTC-SRC-003",
"file": "lib/util/gcp.js",
"line": 53,
"nonRuntime": false
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "cep_auth_status",
"tags": [],
"reasons": {}
},
{
"tool": "cep_auth_clear",
"tags": [],
"reasons": {}
},
{
"tool": "check_and_enable_cep_api",
"tags": [],
"reasons": {}
},
{
"tool": "check_cep_subscription",
"tags": [],
"reasons": {}
},
{
"tool": "check_ev_extension_status",
"tags": [],
"reasons": {}
},
{
"tool": "check_seb_extension_status",
"tags": [],
"reasons": {}
},
{
"tool": "check_user_cep_license",
"tags": [],
"reasons": {}
},
{
"tool": "count_browser_versions",
"tags": [],
"reasons": {}
},
{
"tool": "create_caa_access_level",
"tags": [],
"reasons": {}
},
{
"tool": "create_chrome_dlp_rule",
"tags": [],
"reasons": {}
},
{
"tool": "create_default_dlp_rules",
"tags": [],
"reasons": {}
},
{
"tool": "create_regex_detector",
"tags": [],
"reasons": {}
},
{
"tool": "create_url_list_detector",
"tags": [],
"reasons": {}
},
{
"tool": "create_word_list_detector",
"tags": [],
"reasons": {}
},
{
"tool": "delete_agent_dlp_rule",
"tags": [],
"reasons": {}
},
{
"tool": "delete_detector",
"tags": [],
"reasons": {}
},
{
"tool": "diagnose_environment",
"tags": [],
"reasons": {}
},
{
"tool": "enable_chrome_enterprise_connectors",
"tags": [],
"reasons": {}
},
{
"tool": "get_chrome_activity_log",
"tags": [],
"reasons": {}
},
{
"tool": "get_connector_policy",
"tags": [],
"reasons": {}
},
{
"tool": "get_customer_id",
"tags": [],
"reasons": {}
},
{
"tool": "get_dlp_rule",
"tags": [],
"reasons": {}
},
{
"tool": "install_ev_extension",
"tags": [],
"reasons": {}
},
{
"tool": "install_seb_extension",
"tags": [],
"reasons": {}
},
{
"tool": "search_content",
"tags": [],
"reasons": {}
},
{
"tool": "get_document",
"tags": [],
"reasons": {}
},
{
"tool": "list_documents",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"browse\""
]
}
},
{
"tool": "list_caa_access_levels",
"tags": [],
"reasons": {}
},
{
"tool": "list_customer_profiles",
"tags": [],
"reasons": {}
},
{
"tool": "list_detectors",
"tags": [],
"reasons": {}
},
{
"tool": "list_dlp_rules",
"tags": [],
"reasons": {}
},
{
"tool": "list_org_units",
"tags": [],
"reasons": {}
},
{
"tool": "search_organizations",
"tags": [],
"reasons": {}
},
{
"tool": "create_secure_gateway",
"tags": [],
"reasons": {}
},
{
"tool": "get_secure_gateway",
"tags": [],
"reasons": {}
},
{
"tool": "list_secure_gateways",
"tags": [],
"reasons": {}
},
{
"tool": "enable_service_discovery",
"tags": [],
"reasons": {}
},
{
"tool": "update_secure_gateway",
"tags": [],
"reasons": {}
},
{
"tool": "create_secure_gateway_application",
"tags": [],
"reasons": {}
},
{
"tool": "get_secure_gateway_application",
"tags": [],
"reasons": {}
},
{
"tool": "list_secure_gateway_applications",
"tags": [],
"reasons": {}
},
{
"tool": "update_secure_gateway_application",
"tags": [],
"reasons": {}
},
{
"tool": "delete_secure_gateway_application",
"tags": [],
"reasons": {}
},
{
"tool": "get_secure_gateway_iam_policy",
"tags": [],
"reasons": {}
},
{
"tool": "get_secure_gateway_application_iam_policy",
"tags": [],
"reasons": {}
},
{
"tool": "set_secure_gateway_iam_policy",
"tags": [],
"reasons": {}
},
{
"tool": "set_secure_gateway_application_iam_policy",
"tags": [],
"reasons": {}
},
{
"tool": "security_insights",
"tags": [],
"reasons": {}
},
{
"tool": "security_insights_data",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "eb07b34bd99341f9bd01978952958b2002c55fd02fb20781b83f590f0472d2f6",
"stats": {
"tools": 49,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 1,
"medium": 1,
"low": 0,
"info": 0
}
}
}