PYSEC-2026-594
See a problem?- Import Source
- https://github.com/pypa/advisory-database/blob/main/vulns/mrbios/PYSEC-2026-594.yaml
- JSON Data
- https://api.osv.dev/v1/vulns/PYSEC-2026-594
- Aliases
- Published
- 2026-06-30T21:23:05Z
- Modified
- 2026-07-01T12:45:04.743953340Z
- Summary
- Malicious code in mrbios (PyPI)
- Details
-
Part of the "Hades" wave of the Shai-Hulud supply-chain campaign. On 2026-06-08, malicious phantom releases of mrbios 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.
- References
-
- https://inspector.pypi.io/project/mrbios/0.1.2/packages/57/fb/c33c8829af52faa727d93f68688a53322e10e5f617c6b26f86f9c9ad35b9/mrbios-0.1.2-py3-none-any.whl//mrbios-setup.pth
- https://www.endorlabs.com/learn/shai-hulud-hades-wave-hits-six-pypi-bioinformatics-packages
- https://www.stepsecurity.io/blog/the-hades-campaign-pypi-pack
Affected packages
PyPI / mrbios
Package
- Name
- mrbios
- View open source insights on deps.dev
- Purl
- pkg:pypi/mrbios