PYSEC-2026-609
PYSEC-2026-609 · Malicious code in synago (PyPI)
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Part of the "Hades" wave of the Shai-Hulud supply-chain campaign. On 2026-06-08, malicious phantom releases of synago 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.
- Published
- Updated
Stack: python
Affected products and versions
synago PyPI
- Versions
- 0.1.1
- 0.1.2
No fix published
Original sources
- https://inspector.pypi.io/project/synago/0.1.2/packages/64/70/fb4eb0a51f638d7d023745662133b4cdf4c0ff1424a05270f989e29b8677/synago-0.1.2-py3-none-any.whl//synago-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-packages
- https://osv.dev/vulnerability/PYSEC-2026-609