Ynab Mcpb MCP Server
@dizzlkheinz/ynab-mcpb
npm
v0.27.1
Source verified
Published by dizzlkheinz — publish provenance cryptographically ties this package to that repository. That is proof of origin, not an official vendor package.
Started at 100 and nothing was deducted: the deterministic scan raised no scored threat in the published surface it inspected. Capability observations and advisory notes are recorded but never lower the score.
Findings 9
high Shell/command execution in server code (scripts/create-pr-description.js)MTC-SRC-002
In the server's implementation (`scripts/create-pr-description.js:7`): 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.
Evidence: child_process
Fix: 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: server scripts/create-pr-description.js
high Shell/command execution in server code (scripts/run-all-tests.js)MTC-SRC-002
In the server's implementation (`scripts/run-all-tests.js:7`): 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.
Evidence: spawn (
Fix: 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: server scripts/run-all-tests.js
high Shell/command execution in server code (scripts/run-domain-integration-tests.js)MTC-SRC-002
In the server's implementation (`scripts/run-domain-integration-tests.js:5`): 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.
Evidence: child_process
Fix: 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: server scripts/run-domain-integration-tests.js
high Shell/command execution in server code (scripts/run-generate-mcpb.js)MTC-SRC-002
In the server's implementation (`scripts/run-generate-mcpb.js:2`): 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.
Evidence: child_process
Fix: 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: server scripts/run-generate-mcpb.js
high Shell/command execution in server code (scripts/run-throttled-integration-tests.js)MTC-SRC-002
In the server's implementation (`scripts/run-throttled-integration-tests.js:5`): 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.
Evidence: child_process
Fix: 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: server scripts/run-throttled-integration-tests.js
high Shell/command execution in server code (src/__tests__/testRunner.ts)MTC-SRC-002
In the server's implementation (`src/__tests__/testRunner.ts:5`): 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.
Evidence: child_process
Fix: 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: server src/__tests__/testRunner.ts
medium Dynamic module load from a non-literal (bin/ynab-mcp-server.cjs)MTC-SRC-005
In the server's implementation (`bin/ynab-mcp-server.cjs:4`): Loading a module chosen at runtime (from a variable) can pull in and run attacker-influenced code paths. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: require(entry)
Fix: 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: server bin/ynab-mcp-server.cjs
medium Dynamic module load from a non-literal (bin/ynab-mcp-server.js)MTC-SRC-005
In the server's implementation (`bin/ynab-mcp-server.js:8`): Loading a module chosen at runtime (from a variable) can pull in and run attacker-influenced code paths. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: import(entry)
Fix: 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: server bin/ynab-mcp-server.js
medium Dynamic module load from a non-literal (src/tools/schemas/outputs/accountOutputs.ts)MTC-SRC-005
In the server's implementation (`src/tools/schemas/outputs/accountOutputs.ts:104`): Loading a module chosen at runtime (from a variable) can pull in and run attacker-influenced code paths. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: import (optional)
Fix: 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: server src/tools/schemas/outputs/accountOutputs.ts
What this scan could not see
- No tools were enumerated, so prompt-injection, capability and toxic-flow analysis had no tool surface to inspect. To grade a package’s real runtime tools, scan the running server: --command "npx -y <package>".
Versions
Scan history per published version. The engine is deterministic — the same version always yields the same score, so a changed score means the package itself changed.
| Version | Score | Findings | Engine | Scanned |
|---|---|---|---|---|
v0.27.1 latest |
A 100/100 | 9 | 1.5.0 | 2026-07-22 |
Embed this score
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Verify this score yourself
The score above is reproducible: the same package version always yields the same result. Run it locally or over the free API — no account, no LLM, fully deterministic.
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