GCVE-110-OSM-2026-4215

Advisory PublishedCVSS 9.6/10

Vulnetix · Advisory published May 13, 2026

[osmalyze-auto] Malicious package detected. Behaviors: data exfiltration, code execution, network activity, install-time execution. [osmalyze-auto] Entrypoint: index.js (main: index.js) Payload: index.js Key findings: - Decoded Base64 Content in package.json - Shell Command Execution in package.json: "require('child_process')" - Curl/Wget Pipe to Shell in package.json: "curl -s '+d+'|bash" - Brand New Package - Rapid Version Publishing IOCs: - urls: https://sepolia.infura.io/v3/YOUR-KEY, http://8.217.75.147:3000/payload - domains: sepolia.infura.io - ips: 8.217.75.147 - payloadFileHash: 30de91d96a3135e6cb4db649e7f037bab8b45d25b27c33f6984783815543b6a8 Decoded/deobfuscated IOCs: - urls: http://8.217.75.147:3000/payload - ips: 8.217.75.147

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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	hardhat-core	2.0.0 (affected)	—

References

Malicious npm package: hardhat-core

advisory

vendor

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