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PYSEC-2026-1068

Malicious code in dreamgen (PyPI)

Details

Part of the "Hades" wave of the Shai-Hulud supply-chain campaign. On 2026-06-08, malicious phantom releases of dreamgen 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.

Are you affected?

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Affected packages

PyPI / dreamgen

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

References

https://inspector.pypi.io/project/dreamgen/1.8.1/packages/17/5b/d156503d17b45fad8acce719202870a7652915141b02ec365f8df88a5b4f/dreamgen-1.8.1-py3-none-any.whl/dreamgen-setup.pth [EVIDENCE]
https://www.endorlabs.com/learn/shai-hulud-hades-wave-hits-six-pypi-bioinformatics-packages [ARTICLE]
https://www.stepsecurity.io/blog/the-hades-campaign-pypi-packages [ARTICLE]