registry / Credential exfiltration / @roarkanalytics/sdk-mcp / 2.33.2

@roarkanalytics/sdk-mcp@2.33.2

The official MCP Server for the Roark API

AI Security Review

scanned 1mo ago · by lpm-firewall-ai

The default execute path copies the user-supplied Roark bearer token to CODE_MODE_ENDPOINT_URL with no destination allowlist, which is conditional credential exposure rather than install-time theft. There are no lifecycle hooks or hidden unrelated receivers, so this is a warning-level dual-use capability, not a publish block.

Static reason

High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review; source fingerprint signature matched known malicious package; routed for review; previous stored version diff introduced dangerous source

Trigger

The user runs the mcp-server CLI and an agent calls the execute tool while code execution mode is stainless-sandbox.

Impact

Conditional exposure of the Roark API bearer token to Stainless or whatever host CODE_MODE_ENDPOINT_URL names.

Mechanism

Forwards the Roark API token to an unrestricted Stainless code-tool endpoint

AI rationale

Evidence

src/code-tool.tscode-tool.jscode-tool.mjssrc/server.tssrc/options.ts

Network endpoints1

api.stainless.com/api/ai/code-tool

Decision evidence

public snapshot

AI called this Suspicious at 86.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

The execute code tool is enabled by default and remote Stainless sandbox mode is the default.
On execute, the Roark bearer token is copied into the x-stainless-mcp-client-envs header and POSTed to CODE_MODE_ENDPOINT_URL with no host allowlist.
The default receiver is https://api.stainless.com/api/ai/code-tool, not the Roark API.
The published CommonJS and ESM builds perform the same token forward.
Local mode dynamically imports caller-supplied TypeScript in a Deno worker instead of sending the token to Stainless.

Evidence against

package.json has no preinstall, install, or postinstall scripts; the entrypoint is the mcp-server CLI.
This is a Stainless-generated official Roark MCP server, and the Roark token is the credential the user supplies to run it.
instructions.js fetches Stainless instruction text with an optional Stainless API key and does not send the Roark token.
local-docs-search.js embeds SDK documentation for local search rather than an outbound payload.
Scanner malware-similarity hits match this shared Stainless MCP template, not a hidden command-and-control path.

Source & flagged code

12 flagged

instructions.jsView file

Lines 1-27javascript

1"use strict";

2// File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.

3var __importDefault = (this && this.__importDefault) || function (mod) {

4 return (mod && mod.__esModule) ? mod : { "default": mod };

5};

6Object.defineProperty(exports, "__esModule", { value: true });

7exports.getInstructions = getInstructions;

8const promises_1 = __importDefault(require("fs/promises"));

9const logger_1 = require("./logger.js");

Medium

Dynamic Require

Package source references dynamic require/import behavior.

instructions.jsView on unpkg · L7

10const util_1 = require("./util.js");

11const INSTRUCTIONS_CACHE_TTL_MS = 15 * 60 * 1000; // 15 minutes

12const instructionsCache = new Map();

13async function getInstructions({ stainlessApiKey, customInstructionsPath, }) {

14 const now = Date.now();

15 const cacheKey = customInstructionsPath ?? stainlessApiKey ?? '';

16 const cached = instructionsCache.get(cacheKey);

17 if (cached && now - cached.fetchedAt <= INSTRUCTIONS_CACHE_TTL_MS) {

18 return cached.fetchedInstructions;

19 }

20 // Evict stale entries so the cache doesn't grow unboundedly.

21 for (const [key, entry] of instructionsCache) {

22 if (now - entry.fetchedAt > INSTRUCTIONS_CACHE_TTL_MS) {

23 instructionsCache.delete(key);

24 }

25 }

26 let fetchedInstructions;

27 if (customInstructionsPath) {

•matchType = normalized_sha256 matchedPackage = plumery-mcp@3.9.0 matchedPath = instructions.js matchedIdentity = npm:cGx1bWVyeS1tY3A:3.9.0 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

instructions.jsView on unpkg

code-tool.jsView file

Lines 31-71javascript

31 if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !==

package.jsonView file

Lines 207-235json

207 "import": "./types.mjs",

208 "require": "./types.js"

209 },

210 "./types.js": {

211 "default": "./types.js"

212 },

213

code-tool.mjsView file

•matchType = normalized_sha256 matchedPackage = @roarkanalytics/sdk-mcp@3.6.1 matchedPath = code-tool.mjs matchedIdentity = npm:QHJvYXJrYW5hbHl0aWNzL3Nkay1tY3A:3.6.1 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

code-tool.mjsView on unpkg

src/code-tool.tsView file

•matchType = normalized_sha256 matchedPackage = @roarkanalytics/sdk-mcp@3.6.1 matchedPath = src/code-tool.ts matchedIdentity = npm:QHJvYXJrYW5hbHl0aWNzL3Nkay1tY3A:3.6.1 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

src/code-tool.tsView on unpkg

code-tool-worker.jsView file

•matchType = normalized_sha256 matchedPackage = @roarkanalytics/sdk-mcp@3.6.1 matchedPath = code-tool-worker.js matchedIdentity = npm:QHJvYXJrYW5hbHl0aWNzL3Nkay1tY3A:3.6.1 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

code-tool-worker.jsView on unpkg

local-docs-search.jsView file

•matchType = normalized_sha256 matchedPackage = @roarkanalytics/sdk-mcp@2.34.0 matchedPath = local-docs-search.js matchedIdentity = npm:QHJvYXJrYW5hbHl0aWNzL3Nkay1tY3A:2.34.0 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

local-docs-search.jsView on unpkg

Source & flagged code

12 flagged · loading source

instructions.jsView file

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

instructions.jsView on unpkg

7exports.getInstructions = getInstructions; L8: const promises_1 = __importDefault(require("fs/promises")); L9: const logger_1 = require("./logger.js");

Medium

Dynamic Require

Package source references dynamic require/import behavior.

instructions.jsView on unpkg · L7

code-tool.jsView file

51Source sends the broad process environment to a literal external destination. L51: interfaceType: 'PHONE', L52: recordingUrl: 'https://example.com', L53: startedAt: 'startedAt', ... L154: }, L155: body: JSON.stringify({ L156: project_name: 'roark-analytics', ... L165: } L166: throw new Error(`${res.status}: ${res.statusText} error when trying to contact Code Tool server. Details: ${await res.text()}`); L167: } ... L193: // Check if deno is in PATH L194: const { execSync } = await Promise.resolve().then(() => __importStar(require('node:child_process'))); L195: try {

Findings

2 Critical8 High5 Medium4 Low

CriticalHardcoded Runtime Data Exfiltrationcode-tool.js

CriticalManifest Confusionpackage.json

HighKnown Malware Source Similaritycode-tool.js

HighKnown Malware Source Similaritycode-tool.mjs

HighKnown Malware Source Similaritysrc/code-tool.ts

HighKnown Malware Source Similaritycode-tool-worker.js

HighKnown Malware Source Similarityinstructions.js

HighKnown Malware Source Similaritylocal-docs-search.js

HighKnown Malware Source Fingerprint Signaturecode-tool.js

HighPrevious Version Dangerous Deltacode-tool.js

MediumDynamic Requireinstructions.js

Medium

Affected versions and remediation

This report applies to @roarkanalytics/sdk-mcp@2.33.2.

See all versions of @roarkanalytics/sdk-mcp for other recorded verdicts.

Review the evidence and your use of @roarkanalytics/sdk-mcp@2.33.2 before allowing it. Restrict the permissions described in this report.
Choose an independently verified alternative or release. This report does not establish that other versions are safe.

Evidence last updated: 2026-09-19 09:15:21.453Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.

AI Security Review

Decision evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Behavioral surface

Source & flagged code