GCVE-110-OSM-2026-4155

Advisory PublishedCVSS 5.4/10

Vulnetix · Advisory published May 12, 2026

[osmalyze-auto] Bug bounty dependency confusion attempt. Package exfiltrates basic system information (hostname, IP, DNS) to security research infrastructure. Behaviors: data exfiltration, code execution, network activity, install-time execution. [osmalyze-auto] Entrypoint: index.js (install-hook: node index.js) Exfil: https://t3xvq7p4wol277qdaz6b16kp4ga9yzmo.oastify.com/testbydex_apps-legacy-reports (oast, recovery: plaintext in index.js) Payload: index.js Key findings: - OAST/Interactsh Exfiltration in index.js: "oastify.com" - Shell Command Execution in index.js: "require('child_process')" - Install Hook Executes Local JS File in package.json: ""preinstall": "node index.js"" - Brand New Package - Very New NPM Publisher Account IOCs: - oastEndpoints: https://t3xvq7p4wol277qdaz6b16kp4ga9yzmo.oastify.com/testbydex_apps-legacy-reports - payloadFileHash: bd24e6222ef791ff7c1e85dd71177c543e95b19162ff94e6633f91a6eb289a5b

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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	@apps-legacy-reports/events	* (affected), * (affected), * (affected), all (affected)	—

References

Malicious npm package: @apps-legacy-reports/events

advisory

vendor

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