GCVE-110-OSM-2026-2013

Advisory PublishedCVSS 5.4/10

Vulnetix · Advisory published April 12, 2026

Bug bounty dependency confusion attempt. Package exfiltrates basic system information (hostname, IP, DNS) to security research infrastructure. Behaviors: data exfiltration, code execution, install-time execution. Payload: postinstall.js Key findings: - OAST/Interactsh Exfiltration in postinstall.js: "webhook.site" - Install Hook Executes Local JS File in package.json: ""postinstall": "node postinstall.js"" - Shell Command Execution in postinstall.js: "require('child_process')" - POST Method Defined for Exfiltration in postinstall.js: "method: 'POST', headers: { 'Content-Type': 'application/json', ..." - Very New NPM Publisher Account IOCs: - payloadFileHash: ac0e3a425b2df14a6d6a4e8a4ffea80bee14fe267bda21d2dcfbcda4e1fc4aa4

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Weaknesses (CWE)

CWE-506Embedded Malicious Code

Risk Scores

CVSS 3.1

5.4/10

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

Affected Products

Vendor	Product	Versions	Platforms
unknown	farikku-util	all (affected)	—

References

Malicious npm package: farikku-util

advisory

vendor

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