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PYSEC-2026-232

Malicious code in ensmallen (PyPI)

상세

Part of the "Hades" wave of the Shai-Hulud supply-chain campaign. On 2026-06-08, malicious phantom releases of ensmallen were published to PyPI using stolen credentials. The package executes a bundled JavaScript payload (via the Bun runtime) on import that harvests and exfiltrates credentials and attempts self-propagation. This entry is a summary; behavior may not be fully characterized here. See the linked references for detailed analysis and indicators of compromise.

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PyPI / ensmallen

No fixed version published yet for ensmallen (pip). Pin to a known-safe version or switch to an alternative.

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