registry / @sapiom/mcp / 0.14.0
@sapiom/mcp@0.14.0
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: the code opens a browser for OAuth and exchanges an authorization code. The package has no install lifecycle hook, and its networked publishing behavior is explicit, credential-gated functionality.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
A user invokes the authentication or app-publishing MCP tool.
Impact
Intended Sapiom account authentication and deployment only.
Mechanism
Authenticated OAuth and project bundle upload.
AI rationale
The scanner's reverse-shell match is a false positive: the code opens a browser for OAuth and exchanges an authorization code. The package has no install lifecycle hook, and its networked publishing behavior is explicit, credential-gated functionality.
Decision evidence
public snapshotAI called this Clean at 96.0% confidence as Benign with low false-positive risk.
Evidence for AI clean decision
- The manifest declares development and start scripts but no automatic install lifecycle hook.
- The flagged child-process code is a browser opener inside an authentication function, not a reverse shell.
- The publishing tool requires cached credentials and is invoked as a named MCP tool before collecting and uploading a project bundle.
Evidence against
- No install-time execution or runtime dependency on this package itself was found.
- The OAuth callback binds locally and validates a random state value.
- The publishing tool skips dotfiles, node_modules, the project configuration file, and symlinks while collecting a bundle.
- No credential harvesting or unconsented exfiltration behavior was found.
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-publish.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@0.14.0.
See all versions of @sapiom/mcp for other recorded verdicts.
- Review the evidence and your use of @sapiom/mcp@0.14.0 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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