GCVE-110-OSM-2026-3197

Advisory PublishedCVSS 9.6/10

Vulnetix · Advisory published April 25, 2026

Malicious package detected. Behaviors: data exfiltration, code execution, obfuscated code, install-time execution. Payload: dist/postinstall.js Key findings: - Decoded Base64 Content in dist/postinstall.js - Shell Command Execution in dist/postinstall.js: "require('child_process')" - Dynamic Base64 Decoding in dist/postinstall.js: "atob(HASH_KEY)" - Detached Child Process Payload in dist/postinstall.js: "spawn('node', [], { detached: true" - Install Hook Executes Local JS File in package.json: ""postinstall": "node ./dist/postinstall.js"" IOCs: - urls: https://lukeed.com, https://licenses.dev/b/npm/clsx, https://licenses.dev/npm/clsx, https://api.npoint.io/984b75c022a70cf00c39 - domains: lukeed.com, licenses.dev, api.npoint.io - payloadFileHash: 5f56892ba3e5445aeef5969d124d114477512fefd77a309082e3d77381c03d00 Decoded/deobfuscated IOCs: - urls: https://api.npoint.io/984b75c022a70cf00c39 - domains: api.npoint.io

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Weaknesses (CWE)

CWE-506Embedded Malicious Code

Risk Scores

CVSS 3.1

9.6/10

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

Affected Products

Vendor	Product	Versions	Platforms
unknown	clsx-js@1.0.1	all (affected)	—

References

Malicious npm package: clsx-js@1.0.1

advisory

vendor

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