GCVE-110-OSM-2026-5181

Advisory PublishedCVSS 9.6/10

Vulnetix · Advisory published June 2, 2026

Suspected dependency confusion attack. Behaviors: data exfiltration, code execution, install-time execution. Entrypoint: postinstall.mjs (install-hook: bun ./postinstall.mjs || node ./postinstall.mjs) Payload: bin/stardrop Secondary files: postinstall.mjs Key findings: - Publisher Has Other Malicious Packages - Shell Command Execution in bin/stardrop: "require("child_process")" - Install Hook Executes Local JS File in package.json: ""postinstall": "bun ./postinstall.mjs || node ./postinstall.mjs"" IOCs: - payloadFileHash: 9a7ac8c6145024a6719c9685bf734fb73bf4a159d0bbcd2f28be72b9f41aaa79

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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	bucharest	all (affected)	—

References

Malicious npm package: bucharest

advisory

vendor

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