GCVE-110-OSM-2026-4299

Advisory PublishedCVSS 8.8/10

Vulnetix · Advisory published May 18, 2026

[osmalyze-auto] Malicious package detected. Behaviors: data exfiltration, code execution, obfuscated code, install-time execution. [osmalyze-auto] Entrypoint: index.js (main: index.js) Payload: crypto-js.js Secondary files: core.js Key findings: - Data Encoding for Exfiltration in core.js: "encodeURIComponent(utf8Str" - XOR-Encoded String Arrays in crypto-js.js: "var PC1 = [ 57, 49, 41, 33, 25, 17, 9, 1, 58, 50, 42, 34, 26,..." - Data Encoding for Exfiltration in crypto-js.js: "encodeURIComponent(utf8Str" - XOR-Encoded String Arrays in tripledes.js: "var PC1 = [ 57, 49, 41, 33, 25, 17, 9, 1, 58, 50, 42, 34, 26,..." - Very New NPM Publisher Account IOCs: - ipv6: 8::, f::, D::, E::, 6:: (+4 more) - urls: http://�G��F�I~�rac��R, http://upx.sf.net - domains: 6.LY, 4.gp, em.de, 5.aM, ssl.Ng (+4 more) - sha256Hashes: 2f77668a9dfbf8d5848b9eeb4a7145ca94c6ed9236e4a773f6dcafa5132b2f91 - payloadFileHash: ee02257ffbaf0a9b481c7039b0f3bb20c360c9674fe4be8b38ae709b2ea59bbe

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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	crypto-javascript	4.3.1 (affected)	—

References

Malicious npm package: crypto-javascript

advisory

vendor

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