GCVE-110-OSM-2026-4850

Advisory PublishedCVSS 9.6/10

Vulnetix · Advisory published May 28, 2026

Malicious package detected. Behaviors: data exfiltration, code execution, install-time execution. Entrypoint: scripts/postinstall.js (install-hook: node scripts/postinstall.js) Exfil: https://oob.moika.tech/report (custom-c2, recovery: plaintext in scripts/postinstall.js) Payload: scripts/postinstall.js Key findings: - Publisher Has Other Malicious Packages - Install Hook Executes Local JS File in package.json: ""postinstall": "node scripts/postinstall.js"" - Shell Command Execution in scripts/postinstall.js: "require('child_process')" - Silent Process Execution in scripts/postinstall.js: "stdio: 'ignore'" - Brand New Package IOCs: - urls: https://docs.service-suppliers.io/platform/set_country_list, https://jira.service-suppliers.io/projects/PLATFORM, https://npm.service-suppliers.io, https://github.service-suppliers.io/platform/set_country_list.git, https://oob.moika.tech/report (+1 more) - domains: oob.moika.tech - emails: platform@service-suppliers.io - payloadFileHash: ef37cc4a74f87eb2b0e244b03998bb514885d45d8561f583cecb9582a90141e2

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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	@service-suppliers/set_country_list	11.11.11 (affected)	—

References

Malicious npm package: @service-suppliers/set_country_list

advisory

vendor

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