GCVE-110-OSM-2026-5388

Advisory PublishedCVSS 8.8/10

Vulnetix · Advisory published June 5, 2026

Malicious package detected. Behaviors: code execution. Entrypoint: lib/bn.js (main: lib/bn.js) Payload: lib/bn.js Key findings: - XOR-Encoded String Arrays in lib/bn.js: "var groupSizes = [ 0, 0, 25, 16, 12, 11, 10, 9, 8, 8, 7, 7, 7, 7, 6,..." IOCs: - urls: https://scoutapm.com/ - domains: scoutapm.com - payloadFileHash: 82778bc6189d811e4fbb56c0fd2dc9649caafc47a69cccc0ed60cebb311661b0

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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	next-bignumber.js	1.0.0 (affected)	—

References

Malicious npm package: next-bignumber.js

advisory

vendor

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