GCVE-110-OSM-2026-4171

Advisory PublishedCVSS 9.6/10

Vulnetix · Advisory published May 13, 2026

[osmalyze-auto] Malicious package detected. Behaviors: data exfiltration, install-time execution. [osmalyze-auto] Entrypoint: preinstall.js (install-hook: node preinstall.js) Payload: preinstall.js Key findings: - Environment Variable Exfiltration in preinstall.js: "process.env.npm_package_name || 'unknown') + "&hostname=" + os.hostname(), m..." - Install Hook Executes Local JS File in package.json: ""preinstall": "node preinstall.js"" - System Information Exfiltration in preinstall.js: "os.hostname(), method: 'GET' }; const req = https.request" - HTTP Data Exfiltration in preinstall.js: "os.hostname(), method: 'GET' }; const req = https.request" - Brand New Package IOCs: - domains: h5nvwrz2815ubw84cpkwhezm5db9z1nq.b.mburpcollab.com - payloadFileHash: f953effaba2900cece999a0e4f06d5eb4ac614e490856715c678213d2cec8a6b

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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	@pelmnaads/naads-common-logger	all (affected)	—

References

Malicious npm package: @pelmnaads/naads-common-logger

advisory

vendor

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