Description
Part of the "Hades" wave of the Shai-Hulud supply-chain campaign. On 2026-06-08,
malicious phantom releases of dynamo-release 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.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | dynamo-release | 1.5.4 | — | PYSEC-2026-581 |
References
- https://inspector.pypi.io/project/dynamo-release/1.5.4/packages/4a/52/8b85585fc5392a1342d3e62296a9b79c3e1c48737cf6fd4b1ef47e1cf264/dynamo_release-1.5.4-py3-none-any.whl//dynamo_release-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