GCVE-110-BREW-2026-001517

Advisory Published

Vulnetix · Advisory published September 4, 2026

The Homebrew formula `fastmcp` (tap homebrew/core) was flagged as malicious by automated formula analysis (1 corroborating detection(s)). Installing it may execute attacker-controlled code. 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 CodeCWE-522Insufficiently Protected Credentials

Affected Products

Vendor	Product	Versions	Platforms
homebrew	fastmcp	3.4.3 (affected), 4.0.2 (affected)	—

References

advisory

web

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