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Malicious MAL-2026-10905 GHSA-7ffq-88v5-rmwc

win-build-utils

npm package · versions 1.0.0

Reported Jul 20, 2026 · Updated Sep 1, 2026

If this package is installed

Remove it, treat the machine (or CI runner) as compromised, and rotate every secret, token and key it could access — from a different, clean machine.

Details

Source: amazon-inspector (03bd3facc00c36861223058a572fbaa888d815a06c7b309c44639c544c65f1d9)
The package name suggests a Windows build helper utility, but no concrete behavioral evidence is available to confirm or refute installer-side risk. No exfiltration, install-time fetch, credential access, or other attack-class behavior was observed. The package warrants human review to confirm contents and intent before issuing a public verdict.