PYSEC-2026-231
See a problem?- Import Source
- https://github.com/pypa/advisory-database/blob/main/vulns/embiggen/PYSEC-2026-231.yaml
- JSON Data
- https://api.osv.dev/v1/vulns/PYSEC-2026-231
- Aliases
- Published
- 2026-06-25T14:36:27Z
- Modified
- 2026-06-26T23:11:29.752335Z
- Summary
- Malicious code in embiggen (PyPI)
- Details
-
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 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/embiggen/0.11.97/packages/c8/a7/de68666caa05cf898f209e962ebd6c4d22d56bb8432e870fe5ad5f0df52b/embiggen-0.11.97-py3-none-any.whl/embiggen/_index.js
- https://www.endorlabs.com/learn/shai-hulud-hades-wave-hits-six-pypi-bioinformatics-packages
- https://www.stepsecurity.io/blog/the-hades-campaign-pypi-packages
Affected packages
PyPI / embiggen
Package
- Name
- embiggen
- View open source insights on deps.dev
- Purl
- pkg:pypi/embiggen