Malicious code in xwormclient (PyPI)
The xwormclient package on PyPI contained malicious code that downloads and executes a remote executable upon import. The package was identified as part of campaign 2025-08-k7eel and has been flagged by the OpenSSF malicious packages database.
- Disclosed
- Last updated
- Blast radius
- Any user who imported the xwormclient module from PyPI
- Ecosystems
- Attack vectors
- Threat actor
- Affected entities
- xwormclientPyPI package
The xwormclient package published on PyPI contained malicious code designed to execute arbitrary remote executables when the module was imported. This represents a direct supply chain compromise of the Python package ecosystem.\n\nThe malicious behavior was identified and attributed to campaign 2025-08-k7eel. The package was flagged by the OpenSSF's malicious packages project, which tracks confirmed malicious software in open-source repositories. The malware exhibits infostealer characteristics and remote code execution capabilities.\n\nAny system that imported this package would have automatically executed the malicious payload. Users should immediately remove the package and audit their systems for compromise.
Indicators of compromise
- Packages
- xwormclient
Remediation
- Remove xwormclient from all systems immediately
- Audit systems that imported xwormclient for signs of compromise or data exfiltration
- Review system logs for suspicious activity during the period the package was installed
- Change credentials and secrets on affected systems
- Monitor for indicators of compromise associated with campaign 2025-08-k7eel
Sources
- GitHub Advisory GHSA-qf88-7763-5hjm · GitHub Advisory Database
Cite this entry
"Malicious code in xwormclient (PyPI)." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 21, 2026; last updated July 21, 2026. https://supplychainattack.org/incident/malicious-code-in-xwormclient-pypi-g8xogl
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