Yandex Disk — the complete, unedited output of the deterministic mcptrustchecker engine v1.8.0, scanned . Every finding, capability tag and score component below is exactly what the engine produced — no AI, no post-processing.
{
"tool": {
"name": "mcptrustchecker",
"version": "1.8.0",
"methodologyVersion": "mcptrustchecker-1.8"
},
"target": {
"id": "yandex-disk-mcp",
"source": {
"kind": "package",
"origin": "yandex-disk-mcp"
},
"server": {
"name": "yandex-disk-mcp"
}
},
"grade": "A",
"score": {
"score": 96,
"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": "moderate",
"label": "capability blast radius (moderate) — client exposure if the model is manipulated",
"appliedPenalty": 3
},
{
"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-1.8"
},
"capability": {
"level": "moderate",
"reasons": [
"ingests untrusted external content (a prompt-injection entry point)",
"reads sensitive or local data"
],
"tags": [
"sensitive-source",
"untrusted-input"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (10 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-CAP-008",
"title": "Unconstrained path parameter \"path\" on \"yandex_disk_get_metadata\"",
"category": "permissions",
"severity": "low",
"confidence": "heuristic",
"description": "Tool \"yandex_disk_get_metadata\" takes a path parameter \"path\" with no constraint. Without a canonicalize-and-contain check (not visible statically), this permits ../ traversal outside the intended root.",
"remediation": "Resolve and verify the path stays within an allowed root; reject traversal sequences.",
"location": {
"kind": "tool",
"name": "yandex_disk_get_metadata",
"field": "inputSchema.properties.path"
},
"data": {
"param": "path"
}
},
{
"ruleId": "MTC-CAP-008",
"title": "Unconstrained path parameter \"path\" on \"yandex_disk_create_folder\"",
"category": "permissions",
"severity": "low",
"confidence": "heuristic",
"description": "Tool \"yandex_disk_create_folder\" takes a path parameter \"path\" with no constraint. Without a canonicalize-and-contain check (not visible statically), this permits ../ traversal outside the intended root.",
"remediation": "Resolve and verify the path stays within an allowed root; reject traversal sequences.",
"location": {
"kind": "tool",
"name": "yandex_disk_create_folder",
"field": "inputSchema.properties.path"
},
"data": {
"param": "path"
}
},
{
"ruleId": "MTC-CAP-008",
"title": "Unconstrained path parameter \"path\" on \"yandex_disk_get_upload_url\"",
"category": "permissions",
"severity": "low",
"confidence": "heuristic",
"description": "Tool \"yandex_disk_get_upload_url\" takes a path parameter \"path\" with no constraint. Without a canonicalize-and-contain check (not visible statically), this permits ../ traversal outside the intended root.",
"remediation": "Resolve and verify the path stays within an allowed root; reject traversal sequences.",
"location": {
"kind": "tool",
"name": "yandex_disk_get_upload_url",
"field": "inputSchema.properties.path"
},
"data": {
"param": "path"
}
},
{
"ruleId": "MTC-CAP-008",
"title": "Unconstrained path parameter \"path\" on \"yandex_disk_get_download_url\"",
"category": "permissions",
"severity": "low",
"confidence": "heuristic",
"description": "Tool \"yandex_disk_get_download_url\" takes a path parameter \"path\" with no constraint. Without a canonicalize-and-contain check (not visible statically), this permits ../ traversal outside the intended root.",
"remediation": "Resolve and verify the path stays within an allowed root; reject traversal sequences.",
"location": {
"kind": "tool",
"name": "yandex_disk_get_download_url",
"field": "inputSchema.properties.path"
},
"data": {
"param": "path"
}
},
{
"ruleId": "MTC-CAP-008",
"title": "Unconstrained path parameter \"path\" on \"yandex_disk_delete\"",
"category": "permissions",
"severity": "low",
"confidence": "heuristic",
"description": "Tool \"yandex_disk_delete\" takes a path parameter \"path\" with no constraint. Without a canonicalize-and-contain check (not visible statically), this permits ../ traversal outside the intended root.",
"remediation": "Resolve and verify the path stays within an allowed root; reject traversal sequences.",
"location": {
"kind": "tool",
"name": "yandex_disk_delete",
"field": "inputSchema.properties.path"
},
"data": {
"param": "path"
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "yandex_disk_info",
"tags": [],
"reasons": {}
},
{
"tool": "yandex_disk_list_files",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"list_files\""
]
}
},
{
"tool": "yandex_disk_get_metadata",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"parameter \"path\""
]
}
},
{
"tool": "yandex_disk_create_folder",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"parameter \"path\""
]
}
},
{
"tool": "yandex_disk_get_upload_url",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"parameter \"path\""
]
}
},
{
"tool": "yandex_disk_get_download_url",
"tags": [
"untrusted-input",
"sensitive-source"
],
"reasons": {
"untrusted-input": [
"keyword \"download\""
],
"sensitive-source": [
"parameter \"path\""
]
}
},
{
"tool": "yandex_disk_delete",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"parameter \"path\""
]
}
},
{
"tool": "yandex_disk_copy",
"tags": [],
"reasons": {}
},
{
"tool": "yandex_disk_move",
"tags": [],
"reasons": {}
},
{
"tool": "yandex_disk_last_uploaded",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "3e6f1e69e00bb454bcb676915e19b91c17f9e30ad81318853bc9063302210b51",
"stats": {
"tools": 10,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 0,
"medium": 0,
"low": 5,
"info": 0
}
}
}