Notion — 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": "notion-mcp",
"source": {
"kind": "package",
"origin": "notion-mcp"
},
"server": {
"name": "notion-mcp"
}
},
"grade": "F",
"score": {
"score": 58,
"threatScore": 69,
"grade": "F",
"band": "F",
"gateCap": "D",
"categorySubtotals": {
"injection": 0,
"exfiltration": 31.5,
"permissions": 0,
"supply-chain": 0,
"network": 0,
"hygiene": 0
},
"vector": [
{
"kind": "threat",
"ruleId": "MTC-FLOW-001",
"category": "exfiltration",
"severity": "critical",
"confidence": "strong",
"rawWeight": 45,
"confidenceMult": 0.7,
"diminishingFactor": 1,
"appliedPenalty": 31.5
},
{
"kind": "client",
"term": "capability-exposure",
"level": "critical",
"label": "capability blast radius (critical) — client exposure if the model is manipulated",
"appliedPenalty": 10
},
{
"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": [
"a critical finding is present → grade capped at D"
],
"methodologyVersion": "mcptrustchecker-1.13"
},
"capability": {
"level": "critical",
"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)",
"a single tool completes the exfiltration trifecta by itself"
],
"tags": [
"sensitive-source",
"external-sink",
"untrusted-input"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (44 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-FLOW-001",
"title": "Self-contained exfiltration primitive: \"notion_download_file\"",
"category": "exfiltration",
"severity": "critical",
"confidence": "strong",
"description": "Tool \"notion_download_file\" holds all three trifecta roles by itself (untrusted-input + sensitive-source + external-sink). A single call can pull attacker-controlled content, read private data, and exfiltrate it — no composition required.",
"remediation": "Split responsibilities across separate, individually-consented tools; never combine untrusted input, secret reads, and egress in one tool.",
"location": {
"kind": "flow",
"name": "notion_download_file"
},
"owasp": "LLM02:2025 Sensitive Information Disclosure",
"references": [],
"data": {
"tags": [
"untrusted-input",
"sensitive-source",
"external-sink"
],
"staticProvenanceCap": true
}
},
{
"ruleId": "MTC-FLOW-003",
"title": "Read-and-egress in one tool: \"notion_search_pages\"",
"category": "exfiltration",
"severity": "high",
"confidence": "strong",
"description": "Tool \"notion_search_pages\" can both read sensitive data and send data to an external destination. Even without an explicit untrusted-input leg, this is a single-call data-exfiltration path if the model is ever manipulated.",
"remediation": "Separate reading from sending; require explicit user confirmation before egress of file/secret contents.",
"location": {
"kind": "flow",
"name": "notion_search_pages"
},
"owasp": "LLM02:2025 Sensitive Information Disclosure",
"references": [],
"data": {
"tags": [
"sensitive-source",
"external-sink"
]
}
},
{
"ruleId": "MTC-FLOW-003",
"title": "Read-and-egress in one tool: \"notion_describe_database\"",
"category": "exfiltration",
"severity": "high",
"confidence": "strong",
"description": "Tool \"notion_describe_database\" can both read sensitive data and send data to an external destination. Even without an explicit untrusted-input leg, this is a single-call data-exfiltration path if the model is ever manipulated.",
"remediation": "Separate reading from sending; require explicit user confirmation before egress of file/secret contents.",
"location": {
"kind": "flow",
"name": "notion_describe_database"
},
"owasp": "LLM02:2025 Sensitive Information Disclosure",
"references": [],
"data": {
"tags": [
"sensitive-source",
"external-sink"
]
}
},
{
"ruleId": "MTC-SUP-012",
"title": "Package has no license",
"category": "hygiene",
"severity": "info",
"confidence": "strong",
"description": "\"notion-mcp\" has no declared license. This is a legal/reuse concern, not a security finding.",
"location": {
"kind": "package",
"name": "notion-mcp"
}
}
],
"toxicFlows": [
{
"id": "flow-1",
"severity": "critical",
"confidence": "confirmed",
"untrustedInput": [
"notion_download_file"
],
"sensitiveSource": [
"notion_download_file"
],
"externalSink": [
"notion_download_file"
],
"selfContained": true,
"description": "Tool \"notion_download_file\" alone ingests untrusted input, reads sensitive data, and can send it out."
},
{
"id": "flow-2",
"severity": "high",
"confidence": "strong",
"untrustedInput": [],
"sensitiveSource": [
"notion_search_pages"
],
"externalSink": [
"notion_search_pages"
],
"selfContained": true,
"description": "Tool \"notion_search_pages\" both reads sensitive data and can send it externally."
},
{
"id": "flow-3",
"severity": "high",
"confidence": "strong",
"untrustedInput": [],
"sensitiveSource": [
"notion_describe_database"
],
"externalSink": [
"notion_describe_database"
],
"selfContained": true,
"description": "Tool \"notion_describe_database\" both reads sensitive data and can send it externally."
}
],
"capabilities": [
{
"tool": "notion_search_pages",
"tags": [
"sensitive-source",
"external-sink"
],
"reasons": {
"sensitive-source": [
"keyword \"list_files\""
],
"external-sink": [
"keyword \"upload_file\""
]
}
},
{
"tool": "notion_search_databases",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"query database\""
]
}
},
{
"tool": "notion_list_files_on_page",
"tags": [
"untrusted-input",
"sensitive-source"
],
"reasons": {
"untrusted-input": [
"keyword \"download\""
],
"sensitive-source": [
"keyword \"list_files\""
]
}
},
{
"tool": "notion_purge_shared_files",
"tags": [],
"reasons": {}
},
{
"tool": "notion_purge_file",
"tags": [],
"reasons": {}
},
{
"tool": "notion_list_local_files",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"list_files\""
]
}
},
{
"tool": "notion_upload_file",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"upload_file\""
]
}
},
{
"tool": "notion_replace_file",
"tags": [],
"reasons": {}
},
{
"tool": "notion_import_file_from_url",
"tags": [],
"reasons": {}
},
{
"tool": "notion_set_page_visual",
"tags": [],
"reasons": {}
},
{
"tool": "notion_describe_database",
"tags": [
"sensitive-source",
"external-sink"
],
"reasons": {
"sensitive-source": [
"keyword \"list_files\""
],
"external-sink": [
"keyword \"upload_file\""
]
}
},
{
"tool": "notion_upload_file_to_database",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"upload_file\""
]
}
},
{
"tool": "notion_add_file_to_row",
"tags": [],
"reasons": {}
},
{
"tool": "notion_batch_add_file_to_row",
"tags": [],
"reasons": {}
},
{
"tool": "notion_download_file",
"tags": [
"untrusted-input",
"sensitive-source",
"external-sink"
],
"reasons": {
"untrusted-input": [
"keyword \"download\""
],
"sensitive-source": [
"keyword \"list_files\""
],
"external-sink": [
"keyword \"send_email\""
]
}
},
{
"tool": "notion_extract_file_text",
"tags": [],
"reasons": {}
},
{
"tool": "notion_render_file_page",
"tags": [],
"reasons": {}
},
{
"tool": "notion_read_page",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"fetch\""
]
}
},
{
"tool": "notion_create_page",
"tags": [],
"reasons": {}
},
{
"tool": "notion_update_page",
"tags": [],
"reasons": {}
},
{
"tool": "notion_append_content",
"tags": [],
"reasons": {}
},
{
"tool": "notion_archive_page",
"tags": [],
"reasons": {}
},
{
"tool": "notion_restore_page",
"tags": [],
"reasons": {}
},
{
"tool": "notion_update_block",
"tags": [],
"reasons": {}
},
{
"tool": "notion_delete_block",
"tags": [],
"reasons": {}
},
{
"tool": "notion_query_database",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"query database\""
]
}
},
{
"tool": "notion_create_database",
"tags": [],
"reasons": {}
},
{
"tool": "notion_update_database",
"tags": [],
"reasons": {}
},
{
"tool": "notion_get_property",
"tags": [],
"reasons": {}
},
{
"tool": "notion_get_comments",
"tags": [],
"reasons": {}
},
{
"tool": "notion_add_comment",
"tags": [],
"reasons": {}
},
{
"tool": "notion_update_comment",
"tags": [],
"reasons": {}
},
{
"tool": "notion_delete_comment",
"tags": [],
"reasons": {}
},
{
"tool": "notion_list_views",
"tags": [],
"reasons": {}
},
{
"tool": "notion_query_view",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"query database\""
]
}
},
{
"tool": "notion_create_view",
"tags": [],
"reasons": {}
},
{
"tool": "notion_update_view",
"tags": [],
"reasons": {}
},
{
"tool": "notion_delete_view",
"tags": [],
"reasons": {}
},
{
"tool": "notion_list_users",
"tags": [],
"reasons": {}
},
{
"tool": "notion_get_user",
"tags": [],
"reasons": {}
},
{
"tool": "notion_read_page_markdown",
"tags": [],
"reasons": {}
},
{
"tool": "notion_update_page_content",
"tags": [],
"reasons": {}
},
{
"tool": "notion_replace_page_content",
"tags": [],
"reasons": {}
},
{
"tool": "notion_move_page",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "c32286568103df6c10b42cec8c6f37ba502cf7d1172631c5cf31eb08e532ad3c",
"stats": {
"tools": 44,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 1,
"high": 2,
"medium": 0,
"low": 0,
"info": 1
}
}
}