registry / @leofcoin/chain / 1.10.17
@leofcoin/chain@1.10.17
Official javascript implementation
AI Security Review
scanned 5d ago · by lpm-firewall-aiThe package includes an unexplained automatic WebTransport attempt to example.com:23333, which exposes the caller’s network address. The separate IP and geolocation lookups support DHT peer selection, so the source does not establish malicious credential theft or exfiltration.
Static reason
One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source
Trigger
The WebTransport module is dynamically imported for a Node peer connection when WebTransport is unavailable globally; constructing the browser Node client also starts IP lookup during initialization.
Impact
The fixed-host probe exposes the connecting network address to an endpoint unrelated to the package’s named peer service. The IP and location lookups also disclose the public IP for DHT provider selection; no credential collection or theft was identified.
Mechanism
The module attempts a WebTransport connection to example.com:23333. Separately, initialization fetches the public IP from icanhazip.com and requests coordinates from whereis.leofcoin.org.
AI rationale
The package includes an unexplained automatic WebTransport attempt to example.com:23333, which exposes the caller’s network address. The separate IP and geolocation lookups support DHT peer selection, so the source does not establish malicious credential theft or exfiltration.
Evidence
exports/browser/index.browser-CFfJpgKV.jsexports/browser/client-C_pBoi1g-_pfKzCvX.jsexports/browser/node-browser-BNe-en1l.js
Network endpoints3
example.com:23333/testicanhazip.com/whereis.leofcoin.org/?ip=${address}
Decision evidence
public snapshotAI called this Suspicious at 82.0% confidence as Unknown with medium false-positive risk.
Evidence for warning
- The package exposes a browser chain entry point that can load the new WebTransport module.
- Loading that module attempts a WebTransport connection to https://example.com:23333/test and suppresses connection errors.
- A Node peer initialization calls getAddress(), which fetches the public IP from icanhazip.com.
- The fetched IP is sent to whereis.leofcoin.org for coordinates; the code also uses coordinates to rank DHT providers.
Evidence against
- WebTransport is part of the package’s peer networking code, and the fixed-host probe occurs when that transport module is loaded.
- The IP and coordinate lookups are used by DHT peer-distance selection, a networking function of the package.
Behavioral surface
CryptoDynamicRequireEnvironmentVarsEvalFilesystemNetworkWebSocket
HighEntropyStringsTelemetryUrlStrings
Source & flagged code
5 flaggedexports/browser/workers/machine-worker.jsView file
8562const source = instrumentContractSource(new TextDecoder().decode(decoded.contract));
L8563: const func = new Function('__lfcMeter', 'Date', 'crypto', source);
L8564: const Contract = func(meterBridge, dateBridge, cryptoBridge);
Low
Eval
Package source references a known benign dynamic code generation pattern.
exports/browser/workers/machine-worker.jsView on unpkg · L8562exports/browser/node-browser-BNe-en1l.jsView file
453* ```js
L454: * const {createHash} = await import('@leofcoin/crypto')
L455: * createHash(data, algorithm)
Medium
Dynamic Require
Package source references dynamic require/import behavior.
exports/browser/node-browser-BNe-en1l.jsView on unpkg · L453exports/browser/chain.jsView file
Findings
1 Critical2 High3 Medium6 Low
CriticalPrevious Version Dangerous Deltaexports/browser/index.browser-CFfJpgKV.js
HighCross File Remote Execution Contextexports/browser/chain.js
HighSemantic Analysis Limitedexports/browser/index.browser-CFfJpgKV.js#virtual:normalized:round1
MediumDynamic Requireexports/browser/node-browser-BNe-en1l.js
MediumNetwork
MediumEnvironment Vars
LowScripts Present
LowEvalexports/browser/workers/machine-worker.js
LowFilesystem
LowHigh Entropy Strings
LowTelemetry
LowUrl Strings
Affected versions and remediation
This report applies to @leofcoin/chain@1.10.17.
See all versions of @leofcoin/chain for other recorded verdicts.
- Review the evidence and your use of @leofcoin/chain@1.10.17 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: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.