GCVE-110-NPM-2026-034109

Advisory Published

Vulnetix · Advisory published October 2, 2026

[JS-HOOK-DECODE-EGRESS-SEQ] npm lifecycle hook decodes a payload (atob/Buffer.from) AND opens a network egress: the canonical npm install-time exfiltration/staged-execution sequence. A benign hook may decode an asset OR contact a registry, but decode+egress together in an install hook is exfiltration/staging.

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Weaknesses (CWE)

CWE-506Embedded Malicious CodeCWE-200Exposure of Sensitive Information to an Unauthorized Actor

Affected Products

Vendor	Product	Versions	Platforms
npm	ccusage-ledger	0.1.5 (affected)	—

References

advisory

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