GCVE-110-NPM-2026-027958

Advisory Published

Vulnetix · Advisory published June 29, 2026

The npm package `claude-os` (version 0.5.4) was flagged as malicious by automated package analysis (2 corroborating detection(s)). Installing it may execute attacker-controlled code via lifecycle scripts or bundled JavaScript. Verdict path: evidence — for ownership-only paths (owner-known-bad / multi-identity) the change of ownership is a compounding indicator the engine correlated with other signals, not standalone proof. This verdict is produced by static analysis and is subject to human review.

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Weaknesses (CWE)

CWE-506Embedded Malicious Code

Affected Products

Vendor	Product	Versions	Platforms
npm	claude-os	* (affected), * (affected)	—

References

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