Context — 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": "context-mcp",
"source": {
"kind": "package",
"origin": "context-mcp"
},
"server": {
"name": "context-mcp"
}
},
"grade": "C",
"score": {
"score": 78,
"threatScore": 85,
"grade": "C",
"band": "C",
"categorySubtotals": {
"injection": 0,
"exfiltration": 0,
"permissions": 0,
"supply-chain": 15.4,
"network": 0,
"hygiene": 0
},
"vector": [
{
"kind": "threat",
"ruleId": "MTC-SUP-005",
"category": "supply-chain",
"severity": "high",
"confidence": "strong",
"rawWeight": 22,
"confidenceMult": 0.7,
"diminishingFactor": 1,
"appliedPenalty": 15.4
},
{
"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)",
"reads sensitive or local data",
"has a read → egress path (a data-exfiltration surface)",
"can execute shell commands or code"
],
"tags": [
"untrusted-input",
"sensitive-source",
"code-exec"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (12 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 (context_mcp/tools/search.py)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`context_mcp/tools/search.py:138`): 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": "context_mcp/tools/search.py"
},
"evidence": ": result = subprocess.run( cmd, capture_output=True, tex",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "context_mcp/tools/search.py",
"line": 138,
"nonRuntime": false
}
},
{
"ruleId": "MTC-SRC-002",
"title": "Shell/command execution in server code (context_mcp/utils/tool_detector.py)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`context_mcp/utils/tool_detector.py:70`): 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": "context_mcp/utils/tool_detector.py"
},
"evidence": ": result = subprocess.run( [tool_name, \"--version\"], capture_output=True,",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "context_mcp/utils/tool_detector.py",
"line": 70,
"nonRuntime": false
}
},
{
"ruleId": "MTC-SUP-005",
"title": "Near-miss of @upstash/context7-mcp (edit distance 1)",
"category": "supply-chain",
"severity": "high",
"confidence": "strong",
"description": "\"context-mcp\" is edit-distance 1 from the high-traffic package \"@upstash/context7-mcp\". Verify this is the intended package.",
"remediation": "Confirm you meant \"@upstash/context7-mcp\". Install packages only from their documented, official name.",
"location": {
"kind": "package",
"name": "context-mcp"
},
"owasp": "LLM03:2025 Supply Chain",
"references": [
"https://github.com/ossf/package-analysis",
"https://owasp.org/www-project-top-10-ci-cd-security-risks/"
],
"data": {
"candidate": "context-mcp",
"target": "@upstash/context7-mcp"
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "list_directory",
"tags": [],
"reasons": {}
},
{
"tool": "show_tree",
"tags": [],
"reasons": {}
},
{
"tool": "read_project_context",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"read_pr\""
]
}
},
{
"tool": "search_in_file",
"tags": [],
"reasons": {}
},
{
"tool": "search_in_files",
"tags": [],
"reasons": {}
},
{
"tool": "find_files_by_name",
"tags": [],
"reasons": {}
},
{
"tool": "find_recently_modified_files",
"tags": [],
"reasons": {}
},
{
"tool": "read_entire_file",
"tags": [],
"reasons": {}
},
{
"tool": "read_file_lines",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"read_file\""
]
}
},
{
"tool": "read_file_tail",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"read_file\""
]
}
},
{
"tool": "read_files",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"read_file\""
]
}
},
{
"tool": "get_tool_usage_guide",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "a59cf9d5501022af3b52fae5ef4c54f1c69c96bcc611702a0233e7df3fde83d7",
"stats": {
"tools": 12,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 3,
"medium": 0,
"low": 0,
"info": 0
}
}
}