pincushion-mcp@1.11.12
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AI Security Review
scanned 3mo ago · by lpm-firewall-aiSource inspection found no install lifecycle hook, stealth persistence, or remote payload execution. The package nonetheless performs explicit-user-command MCP configuration, so it should be warned rather than blocked.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
User runs `pincushion claim` after a successful claim, or starts the server with cloud sync credentials.
Impact
A user-requested command may alter local agent configuration; cloud sync transmits the configured license key to the Pincushion service.
Mechanism
Explicit project-local MCP configuration and vendor cloud synchronization.
AI rationale
Source inspection found no install lifecycle hook, stealth persistence, or remote payload execution. The package nonetheless performs explicit-user-command MCP configuration, so it should be warned rather than blocked.
Evidence
package.jsonserver.jsclaim.mjslib/setup-core.jsmobile-wall.mjslib/ownership.mjs.cursor/mcp.json.vscode/mcp.json.mcp.json.feedback/pending-approvals.json~/.pincushion/license-key
Network endpoints3
dpsqzszdviltqvethxbr.supabase.co/functions/v1/sync-annotationsapi.vercel.com/v9/projects/pincushion.io/api/mcp
Decision evidence
public snapshotAI called this Suspicious at 88.0% confidence as Dangerous Capability with low false-positive risk.
Evidence for warning
- Explicit `claim` can register a Pincushion MCP entry in project-local editor configuration.
- The generated MCP entry launches `npx pincushion-mcp --project-dir .`.
- Cloud sync sends its configured license key only to the configured Pincushion sync URL.
Evidence against
- No npm preinstall, install, or postinstall hook is declared.
- Shell execution is limited to the explicit mobile-wall publish deploy-command.
- No remote code download-and-execute chain was found; the scanner's download hint is a displayed installation suggestion.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetworkShell
HighEntropyStringsTelemetryUrlStrings
NoLicense
Source & flagged code
9 flaggedmobile-wall.mjsView file
17// injectable so both modes are testable without a simulator.
L18: import { execFileSync } from 'node:child_process';
L19: import {
High
mobile-wall.mjs#virtual:normalized:round1View file
121function publicUrlFrom(text) {
L122: const m = /(https?:\/\/[^\s"'<>]+)/.exec(String(text || ''));\n return m ? m[1].replace(/[),.;]+$/, '') : '';\n}\n\nasync function fetchCloudAnnotations(ctx, { baseUrl, key, proje...
L123: }
Critical
Same File Env Network Execution
A single source file combines environment access, network access, and code or shell execution with blocking evidence.
mobile-wall.mjs#virtual:normalized:round1View on unpkg · L12117// injectable so both modes are testable without a simulator.
L18: import { execFileSync } from "node:child_process";
L19: import {
...
L32: const DEFAULT_OUT = "crit-wall";
L33: const DEFAULT_FUNCTION_BASE = "https://dpsqzszdviltqvethxbr.supabase.co/functions/v1";
L34:
...
L78: function isSignedIn() {
L79: if (process.env.PINCUSHION_LICENSE_KEY) return true;
L80: try { return !!readFileSync(join(homedir(), ".pincushion", "license-key"), "utf8").trim(); } catch { return false; }
L81: }
...
L97: const firstLine = (e) => String(e.message || e).split("\n")[0];
L98: const execErrText = (e) => [e?.stderr, e?.stdout, e?.message].filter(Boolean).join("\n");
Findings
4 Critical6 High3 Medium6 Low
CriticalSame File Env Network Executionmobile-wall.mjs#virtual:normalized:round1
CriticalCredential Exfiltrationserver.js
CriticalDownload Executemobile-wall.mjs#virtual:normalized:round1
CriticalTrigger Reachable Dangerous Capabilityserver.js
HighChild Processmobile-wall.mjs
HighShell
HighCommand Output Exfiltrationmobile-wall.mjs#virtual:normalized:round1
HighCopied Package Dependency Bridgeserver.js
HighTrigger Reachable Credential Exfiltrationserver.js
HighTrigger Reachable Command Output Exfiltrationmobile-wall.mjs#virtual:normalized:round1
MediumNetwork
Medium
Affected versions and remediation
This report applies to pincushion-mcp@1.11.12.
See all versions of pincushion-mcp for other recorded verdicts.
- Review the evidence and your use of pincushion-mcp@1.11.12 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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