Malicious code in embiggen (PyPI)

The package embiggen version 0.11.97 contains a malicious .pth file embiggen-setup.pth that executes a Bun-based credential stealer on every Python startup via CPython's site.py exec mechanism. The payload downloads the Bun runtime from the official GitHub release page, then runs an obfuscated...

Malicious code in embiggen (PyPI)

Part of the "Hades" wave of the Shai-Hulud supply-chain campaign. On 2026-06-08,malicious phantom releases of embiggen were published to PyPI using stolencredentials. The package executes a bundled JavaScript payload via the Bunruntime on import that harvests and exfiltrates credentials and...

PYSEC-2026-231 Malicious code in embiggen (PyPI)

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