GCVE-110-OSM-2026-4331

Advisory PublishedCVSS 9.6/10

Vulnetix · Advisory published May 19, 2026

[osmalyze-auto] Malicious package detected. Behaviors: data exfiltration, obfuscated code, install-time execution. [osmalyze-auto] Entrypoint: lib/index.js (main: lib/index.js) Payload: index.js Key findings: - Environment Variable Exfiltration in index.js: "process.env,_0x40cf8c=await fetch" - Data Encoding for Exfiltration in index.js: "encodeURIComponent(_0x46231f),_0x502c3c=await fetch(_0x38f633(_0x5c64d5._0x25361..." - Obfuscation: augmented proxied array function replacements in index.js - Obfuscation Pattern: hexVariables in index.js: "_0x192368" IOCs: - urls: https://observablehq.com/@pearmini/antv-scale, https://gw.alipayobjects.com/mdn/rms_40052e/afts/img/A*Usg2S685JQkAAAAAAAAAAAAAARQnAQ, https://svn.r-project.org/R/trunk/src/appl/pretty.c, https://www.rdocumentation.org/packages/base/versions/3.5.2/topics/pretty, https://www.yuque.com/preview/yuque/0/2019/pdf/185317/1546999150858-45c3b9c2-4e86-4223-bf1a-8a732e8195ed.pdf (+1 more) - domains: observablehq.com, gw.alipayobjects.com, www.rdocumentation.org, www.yuque.com, antv.vision - payloadFileHash: e37e3ddeeaaa9e0c4fdbcb829b4895a6521031c80053fc436625b61e6ee5b1a6

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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	@antv/scale	0.7.2 (affected)	—

References

Malicious npm package: @antv/scale

advisory

vendor

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