GCVE-110-OSM-2026-4246

Advisory PublishedCVSS 9.6/10

Vulnetix · Advisory published May 12, 2026

[osmalyze-auto] Malicious package detected. Behaviors: data exfiltration, code execution, install-time execution. [osmalyze-auto] Entrypoint: preinstall.js (install-hook: node preinstall.js || true) Payload: preinstall.js Key findings: - Publisher Has Other Malicious Packages - Install Hook Executes Local JS File in package.json: ""preinstall": "node preinstall.js || true"" - Shell Command Execution in preinstall.js: "require('child_process')" - Platform Detection with Data Collection in preinstall.js: "JSON.stringify({ ts: new Date().toISOString(), host: os.hostname(), user: ..." - Brand New Package IOCs: - ipv4: 72.62.71.201 - payloadFileHash: 1569485cd68f7284da65e8c79c56da1d7ec1f36391da19f65551f57344412d95

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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	mrgn-ui	* (affected)	—

References

Malicious npm package: mrgn-ui

advisory

vendor

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