GCVE-110-OSM-2026-4866

Advisory PublishedCVSS 8.8/10

Vulnetix · Advisory published May 28, 2026

Malicious package detected. Behaviors: code execution. Entrypoint: index.js (default-index: index.js) Payload: index.js Key findings: - Shell Command Execution in index.js: "execSync(" - Silent Process Execution in index.js: "windowsHide: true" - Hidden NPM Install in index.js: "execSync(`npm install clx-cookie-signature --no-warnings --no-save --no-progress..." - Brand New Package - Rapid Version Publishing IOCs: - urls: http://tjholowaychuk.com - domains: vision-media.ca, somethingdoug.com, tjholowaychuk.com - emails: tj@vision-media.ca, doug@somethingdoug.com - payloadFileHash: 5c639fb52cb314ac21be6f64c637d0aef289dae4fdd131f0e588370f6a155045 Hidden install (secondary package pulled at runtime): - clx-cookie-signature [OSM: clean] in index.js

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Weaknesses (CWE)

CWE-506Embedded Malicious Code

Risk Scores

CVSS 3.1

8.8/10

High · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Products

Vendor	Product	Versions	Platforms
unknown	clx-cookieparser	1.4.6 (affected)	—

References

Malicious npm package: clx-cookieparser

advisory

vendor

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