@constellationdev/mcp@1.2.11
Codebase Understanding for AI Coding Agents
AI Security Review
scanned 1mo ago · by lpm-firewall-aiThe active telemetry path forwards an existing service credential to an unrestricted endpoint override. This warrants a credential exposure warning; the inspected lifecycle and sandbox behavior do not establish a malicious attack.
Static reason
One or more suspicious static signals were detected.
Trigger
Override USAGE_ENDPOINT_URL and complete a successful code query with tracked API invocations while usage tracking is enabled.
Impact
The configured recipient can receive the Constellation credential and query usage metadata.
Mechanism
The telemetry endpoint override receives a POST carrying the existing access key in its Authorization header.
AI rationale
The active telemetry path forwards an existing service credential to an unrestricted endpoint override. This warrants a credential exposure warning; the inspected lifecycle and sandbox behavior do not establish a malicious attack.
Evidence
dist/index.js
Decision evidence
public snapshotAI called this Suspicious at 97.0% confidence as Dangerous Capability with low false-positive risk.
Evidence for warning
- Configuration reads the existing CONSTELLATION_ACCESS_KEY from the environment.
- Usage telemetry accepts USAGE_ENDPOINT_URL without restricting its destination.
- The telemetry POST includes the access key as a bearer credential.
- Successful code queries forward the configured access key to the selected telemetry endpoint.
- Usage tracking defaults to enabled and supports environment-based disabling.
Evidence against
- The default telemetry destination is the configured Constellation API; exposure requires an endpoint override.
- The manifest has only a Husky prepare hook and no runtime self-dependency.
- The inspected child process and VM execution implement caller-requested code queries with validation and resource limits.
Behavioral surface
ChildProcessEnvironmentVarsEvalFilesystemNetwork
HighEntropyStringsUrlStrings
Source & flagged code
4 flaggeddist/index.jsView file
1#!/usr/bin/env node
L2: import {McpServer,ResourceTemplate}from'@[redacted].js';import {StdioServerTransport}from'@[redacted].js';import {promises,readF...
L3:
High
1#!/usr/bin/env node
L2: import {McpServer,ResourceTemplate}from'@[redacted].js';import {StdioServerTransport}from'@[redacted].js';import {promises,readF...
L3:
...
L11:
L12: For more information, visit: ${T.root}`;return {config:this.applyEnvironmentOverrides(i),gitRoot:e,loadedAt:Date.now(),configLoaded:false,initializationError:a}}}applyEnvironmentOv...
L13:
High
Same File Env Network Execution
A single source file combines environment access, network access, and code or shell execution; review context before blocking.
dist/index.jsView on unpkg · L11Cross-file remote execution chain: dist/index.js spawns dist/sandbox-worker.js; helper contains network access plus dynamic code execution.
L1: #!/usr/bin/env node
L2: import {McpServer,ResourceTemplate}from'@[redacted].js';import {StdioServerTransport}from'@[redacted].js';import {promises,readF...
L3:
...
L11:
L12: For more information, visit: ${T.root}`;return {config:this.applyEnvironmentOverrides(i),gitRoot:e,loadedAt:Date.now(),configLoaded:false,initializationError:a}}}applyEnvironmentOv...
L13:
...
L131: - Avoid deep \`offset\` paging \u2014 large offsets re-scan earlier rows and get progressively slower until they time out. For \`searchSymbols\`, narrow with \`filterByKind\`, \`is...
L132: ${c}`)}return await i.json()}catch(i){throw i instanceof v?i:new Error(`Failed to execute
Findings
3 High3 Medium7 Low
HighChild Processdist/index.js
HighSame File Env Network Executiondist/index.js
HighCross File Remote Execution Contextdist/index.js
MediumUnsafe Vm Contextdist/sandbox-worker.js
MediumNetwork
MediumEnvironment Vars
LowNon Install Lifecycle Scripts
LowScripts Present
LowEval
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
LowCopyleft License
Affected versions and remediation
This report applies to @constellationdev/mcp@1.2.11.
See all versions of @constellationdev/mcp for other recorded verdicts.
- Review the evidence and your use of @constellationdev/mcp@1.2.11 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: .
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