GCVE-110-OSM-2026-4774

Advisory PublishedCVSS 8.8/10

Vulnetix · Advisory published May 26, 2026

Malicious package detected. Behaviors: data exfiltration. Entrypoint: index.js (main: index.js) Payload: index.js Key findings: - Payload Download from Paste Service in index.js: "jsonkeeper.com" - Brand New Package - Rapid Version Publishing IOCs: - payloadFileHash: 52a59b0f9fb6d920116cf971981652c3adf161461953ed510f32ca3fbf403f68

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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	react-ui-polyfills	all (affected)	—

References

Malicious npm package: react-ui-polyfills

advisory

vendor

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