registry / @sapiom/mcp / 0.15.0
@sapiom/mcp@0.15.0
Local Sapiom developer MCP server (sapiom-dev) — the unmetered surface for building and operating on Sapiom; today it scaffolds, tests, deploys, and inspects orchestrations. Not the remote Sapiom capability MCP.
AI Security Review
scanned 2mo ago · by lpm-firewall-aiThe scanner's reverse-shell match is a false positive: auth.js only launches the platform browser opener and handles a local OAuth callback. There are no install hooks or automatic project/config mutations, and the remaining sensitive operations are explicit authenticated MCP tools.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
Starting the MCP server or explicitly invoking an authenticated MCP tool.
Impact
User-authorized tools can upload, modify, or delete Sapiom-hosted resources.
Mechanism
Sapiom MCP authentication, API calls, and project deployment tools.
AI rationale
The scanner's reverse-shell match is a false positive: auth.js only launches the platform browser opener and handles a local OAuth callback. There are no install hooks or automatic project/config mutations, and the remaining sensitive operations are explicit authenticated MCP tools.
Evidence
.sapiom/credentials.jsonsapiom.json
Network endpoints3
api.sapiom.aiapi.sapiom.devapps.sapiom.ai
Decision evidence
public snapshotAI called this Clean at 94.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- The MCP server fetches current authoring instructions from the configured Sapiom API when it starts.
- The authentication flow opens a browser and runs a loopback callback server before exchanging an OAuth code.
- A delete tool can remove a hosted App Link, but it requires an explicit true confirmation and authenticated credentials.
Evidence against
- package.json has no preinstall, install, postinstall, or self-dependency.
- The child-process use is limited to opening the browser for the user-authentication flow.
- Credential storage is limited to the package-owned .sapiom credential file with restrictive permissions.
- Publishing and management operations are registered MCP tools, not install-time actions.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetworkShell
HighEntropyStringsUrlStrings
Source & flagged code
6 flaggeddist/auth.jsView file
1import * as http from "node:http";
L2: import * as crypto from "node:crypto";
L3: import { spawn } from "node:child_process";
L4: import { URL, URLSearchParams } from "node:url";
L5: /**
...
L9: * - NEVER a visible console. The previous `execSync('start "" "<url>"')`
L10: * spawned cmd.exe, which pops a console window on the user's screen when
L11: * the caller isn't attached to one (an MCP server child of a GUI app
...
L16: * a cmd.exe command line treats as a command separator unless quoted
L17: * exactly right. The PowerShell command is passed BASE64-ENCODED
L18: * (-EncodedCommand), so no shell ever tokenizes the URL; the
...
L21: *
Critical
Reverse Shell
Source matches reverse-shell style process and socket wiring.
dist/auth.jsView on unpkg · L11Trigger-reachable chain: manifest.exports -> dist/auth-api.d.ts -> dist/auth.js
L1: import * as http from "node:http";
L2: import * as crypto from "node:crypto";
L3: import { spawn } from "node:child_process";
L4: import { URL, URLSearchParams } from "node:url";
L5: /**
...
L9: * - NEVER a visible console. The previous `execSync('start "" "<url>"')`
L10: * spawned cmd.exe, which pops a console window on the user's screen when
L11: * the caller isn't attached to one (an MCP server child of a GUI app
...
L16: * a cmd.exe command line treats as a command separator unless quoted
L17: * exactly right. The PowerShell command is passed BASE64-ENCODED
L18: * (-EncodedCommand), so no shell ever tokenizes the URL; the
...
L21: *
Critical
Trigger Reachable Dangerous Capability
A package entrypoint or install-time lifecycle script reaches a source file with blocking dangerous behavior.
Findings
2 Critical4 High3 Medium4 Low
CriticalReverse Shelldist/auth.js
CriticalTrigger Reachable Dangerous Capabilitydist/auth.js
HighChild Processdist/auth.js
HighShelldist/auth.js
HighSandbox Evasion Gated Capabilitydist/auth.js
HighSemantic Analysis Limiteddist/tools/app-manage.js#virtual:normalized:round1
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
Affected versions and remediation
This report applies to @sapiom/mcp@0.15.0.
See all versions of @sapiom/mcp for other recorded verdicts.
- Review the evidence and your use of @sapiom/mcp@0.15.0 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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