GCVE-110-OSM-2026-4773

Advisory PublishedCVSS 8.8/10

Vulnetix · Advisory published May 26, 2026

Malicious package detected. Behaviors: code execution, obfuscated code. Entrypoint: index.js (main: index.js) Payload: restored_script.js Secondary files: test.js Key findings: - Dynamic Code Execution in restored_script.js: "eval(__DECODED_SOURCE__)" - Obfuscation: augmented proxied array function replacements in restored_script.js - Obfuscation Pattern: hexVariables in restored_script.js: "_0x202b7d" - Dynamic Code Execution in test.js: "eval(__DECODED_SOURCE__)" - Obfuscation: augmented proxied array function replacements in test.js IOCs: - payloadFileHash: 352fe1641bcbf7c42971dbc146d6708da5740085601a4702f55de723c8a60291

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Weaknesses (CWE)

CWE-506Embedded Malicious Code

Risk Scores

CVSS 3.1

8.8/10

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

Affected Products

Vendor	Product	Versions	Platforms
unknown	ultra-base64-math	all (affected)	—

References

Malicious npm package: ultra-base64-math

advisory

vendor

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