Malicious Python packages deliver RAT via PyPI

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January 30, 2026 at 12:14 AM

Actively Exploited

Overview

Researchers have discovered that malicious Python packages were uploaded to the Python Package Index (PyPI), posing a significant risk to developers. The harmful code was hidden within a file that appeared to be a Basque language dictionary but was actually a compressed archive containing a Remote Access Trojan (RAT). This incident could affect any developers who inadvertently install these malicious packages, potentially allowing attackers to gain unauthorized access to their systems. It serves as a reminder for users to be cautious when downloading packages from open-source repositories, as they can be exploited to distribute malware. Vigilance and thorough vetting of software dependencies are crucial for maintaining security.

Key Takeaways

Active Exploitation: This vulnerability is being actively exploited by attackers. Immediate action is recommended.
Affected Systems: Python Package Index (PyPI), developers using malicious packages
Action Required: Developers should avoid installing unverified packages and consider using tools to scan for malicious code in dependencies.
Timeline: Newly disclosed

Original Article Summary

The malicious code was concealed within a Basque language dictionary file, disguised as a compressed archive.

Impact

Python Package Index (PyPI), developers using malicious packages

Exploitation Status

This vulnerability is confirmed to be actively exploited by attackers in real-world attacks. Organizations should prioritize patching or implementing workarounds immediately.

Timeline

Newly disclosed

Remediation

Developers should avoid installing unverified packages and consider using tools to scan for malicious code in dependencies.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to Malware, Trojan.

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