GCVE-110-OSM-2026-5993

Advisory PublishedCVSS 5.4/10

Vulnetix · Advisory published June 17, 2026

Executes OS-specific beacon scripts at install time via a malicious postinstall hook (run.js) that selects beacon34.js on macOS or beacon_linux.js on Linux via process.platform and invokes the selected beacon using execFileSync. A hardcoded C2 IP (173.255.233.239) is embedded in the beacon scripts. The author self-description as an 'Authorized security-research probe' is non-exculpatory. Jigsaw analysis confirmed P0 install-reachable process execution. run.js (postinstall hook) performs OS-specific beacon selection and execution via execFileSync. Beacon scripts contain hardcoded C2 IP 173.255.233.239.

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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	metrics-pipeline-d8k2	1.0.10 (affected), 1.0.10 (affected)	—

References

Malicious npm package: metrics-pipeline-d8k2

advisory

vendor

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