Bitbucket — 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": "mcp-server-bitbucket",
"source": {
"kind": "package",
"origin": "mcp-server-bitbucket"
},
"server": {
"name": "mcp-server-bitbucket"
}
},
"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",
"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": [
"external-sink",
"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 (73 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-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: list_directory → get_environment → create_pull_request. 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": "list_directory → get_environment → create_pull_request"
},
"owasp": "LLM02:2025 Sensitive Information Disclosure",
"references": [],
"data": {
"untrusted": [
"list_directory"
],
"sources": [
"get_pipeline_logs",
"get_environment",
"get_file_content"
],
"sinks": [
"create_pull_request",
"create_webhook",
"delete_webhook"
],
"path": [
"list_directory",
"get_environment",
"create_pull_request"
],
"edges": [
{
"from": "list_directory",
"to": "get_environment",
"kind": "agent-mediated"
},
{
"from": "get_environment",
"to": "create_pull_request",
"kind": "agent-mediated"
}
],
"wired": false
}
},
{
"ruleId": "MTC-CAP-007",
"title": "Unconstrained URL/host parameter \"url\" on \"create_webhook\"",
"category": "network",
"severity": "medium",
"confidence": "heuristic",
"description": "Tool \"create_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": "create_webhook",
"field": "inputSchema.properties.url"
},
"owasp": "LLM06:2025 Excessive Agency",
"data": {
"param": "url"
}
},
{
"ruleId": "MTC-CAP-008",
"title": "Unconstrained path parameter \"path\" on \"get_file_content\"",
"category": "permissions",
"severity": "low",
"confidence": "heuristic",
"description": "Tool \"get_file_content\" 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": "get_file_content",
"field": "inputSchema.properties.path"
},
"data": {
"param": "path"
}
}
],
"toxicFlows": [
{
"id": "flow-1",
"severity": "critical",
"confidence": "strong",
"untrustedInput": [
"list_directory"
],
"sensitiveSource": [
"get_pipeline_logs",
"get_environment",
"get_file_content"
],
"externalSink": [
"create_pull_request",
"create_webhook",
"delete_webhook"
],
"selfContained": false,
"path": [
"list_directory",
"get_environment",
"create_pull_request"
],
"pathWired": false,
"description": "A cross-tool exfiltration chain exists: list_directory → get_environment → create_pull_request."
}
],
"capabilities": [
{
"tool": "get_repository",
"tags": [],
"reasons": {}
},
{
"tool": "create_repository",
"tags": [],
"reasons": {}
},
{
"tool": "delete_repository",
"tags": [],
"reasons": {}
},
{
"tool": "list_repositories",
"tags": [],
"reasons": {}
},
{
"tool": "update_repository",
"tags": [],
"reasons": {}
},
{
"tool": "create_pull_request",
"tags": [
"external-sink"
],
"reasons": {
"external-sink": [
"keyword \"create_pull_request\""
]
}
},
{
"tool": "get_pull_request",
"tags": [],
"reasons": {}
},
{
"tool": "list_pull_requests",
"tags": [],
"reasons": {}
},
{
"tool": "merge_pull_request",
"tags": [],
"reasons": {}
},
{
"tool": "list_pr_comments",
"tags": [],
"reasons": {}
},
{
"tool": "add_pr_comment",
"tags": [],
"reasons": {}
},
{
"tool": "approve_pr",
"tags": [],
"reasons": {}
},
{
"tool": "unapprove_pr",
"tags": [],
"reasons": {}
},
{
"tool": "request_changes_pr",
"tags": [],
"reasons": {}
},
{
"tool": "decline_pr",
"tags": [],
"reasons": {}
},
{
"tool": "get_pr_diff",
"tags": [],
"reasons": {}
},
{
"tool": "trigger_pipeline",
"tags": [],
"reasons": {}
},
{
"tool": "get_pipeline",
"tags": [],
"reasons": {}
},
{
"tool": "list_pipelines",
"tags": [],
"reasons": {}
},
{
"tool": "get_pipeline_logs",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"get_logs\""
]
}
},
{
"tool": "stop_pipeline",
"tags": [],
"reasons": {}
},
{
"tool": "list_pipeline_variables",
"tags": [],
"reasons": {}
},
{
"tool": "get_pipeline_variable",
"tags": [],
"reasons": {}
},
{
"tool": "create_pipeline_variable",
"tags": [],
"reasons": {}
},
{
"tool": "update_pipeline_variable",
"tags": [],
"reasons": {}
},
{
"tool": "delete_pipeline_variable",
"tags": [],
"reasons": {}
},
{
"tool": "get_pipeline_config",
"tags": [],
"reasons": {}
},
{
"tool": "update_pipeline_config",
"tags": [],
"reasons": {}
},
{
"tool": "list_branches",
"tags": [],
"reasons": {}
},
{
"tool": "get_branch",
"tags": [],
"reasons": {}
},
{
"tool": "list_commits",
"tags": [],
"reasons": {}
},
{
"tool": "get_commit",
"tags": [],
"reasons": {}
},
{
"tool": "compare_commits",
"tags": [],
"reasons": {}
},
{
"tool": "get_commit_statuses",
"tags": [],
"reasons": {}
},
{
"tool": "create_commit_status",
"tags": [],
"reasons": {}
},
{
"tool": "list_environments",
"tags": [],
"reasons": {}
},
{
"tool": "get_environment",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"get_env\""
]
}
},
{
"tool": "list_deployment_history",
"tags": [],
"reasons": {}
},
{
"tool": "list_webhooks",
"tags": [],
"reasons": {}
},
{
"tool": "create_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\"",
"parameter \"webhook\""
]
}
},
{
"tool": "list_tags",
"tags": [],
"reasons": {}
},
{
"tool": "create_tag",
"tags": [],
"reasons": {}
},
{
"tool": "delete_tag",
"tags": [],
"reasons": {}
},
{
"tool": "list_branch_restrictions",
"tags": [],
"reasons": {}
},
{
"tool": "create_branch_restriction",
"tags": [],
"reasons": {}
},
{
"tool": "delete_branch_restriction",
"tags": [],
"reasons": {}
},
{
"tool": "get_file_content",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"read_file\""
]
}
},
{
"tool": "list_directory",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"browse\""
]
}
},
{
"tool": "list_user_permissions",
"tags": [],
"reasons": {}
},
{
"tool": "get_user_permission",
"tags": [],
"reasons": {}
},
{
"tool": "update_user_permission",
"tags": [],
"reasons": {}
},
{
"tool": "delete_user_permission",
"tags": [],
"reasons": {}
},
{
"tool": "list_group_permissions",
"tags": [],
"reasons": {}
},
{
"tool": "get_group_permission",
"tags": [],
"reasons": {}
},
{
"tool": "update_group_permission",
"tags": [],
"reasons": {}
},
{
"tool": "delete_group_permission",
"tags": [],
"reasons": {}
},
{
"tool": "list_projects",
"tags": [],
"reasons": {}
},
{
"tool": "get_project",
"tags": [],
"reasons": {}
},
{
"tool": "Repositories",
"tags": [],
"reasons": {}
},
{
"tool": "Repository Details",
"tags": [],
"reasons": {}
},
{
"tool": "Repository Branches",
"tags": [],
"reasons": {}
},
{
"tool": "Pull Requests",
"tags": [],
"reasons": {}
},
{
"tool": "Projects",
"tags": [],
"reasons": {}
},
{
"tool": "code_review",
"tags": [],
"reasons": {}
},
{
"tool": "repo_slug",
"tags": [],
"reasons": {}
},
{
"tool": "pr_id",
"tags": [],
"reasons": {}
},
{
"tool": "release_notes",
"tags": [],
"reasons": {}
},
{
"tool": "base_tag",
"tags": [],
"reasons": {}
},
{
"tool": "head",
"tags": [],
"reasons": {}
},
{
"tool": "pipeline_debug",
"tags": [],
"reasons": {}
},
{
"tool": "repo_summary",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "0c98da177278fdd278c47864c45b41460eab01fe3959b487c07039345e4ac515",
"stats": {
"tools": 73,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 1,
"high": 0,
"medium": 1,
"low": 1,
"info": 0
}
}
}