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supplychainattack.orgSupply chain attack incident catalog
resolvedhigh

Malicious code in yeshsurya (PyPI)

The yeshsurya package on PyPI contained malicious code that exfiltrates basic host information (IP address, username) during installation. The package overrides the install command in setup.py to execute the malicious payload.

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Disclosed
Last updated
Blast radius
Any system that installed the yeshsurya package from PyPI
Ecosystems
PyPI
Attack vectors
Compromised package
Affected entities
  • yeshsuryaPyPI package containing malicious code

The yeshsurya package published on PyPI was identified as containing malicious code designed to exfiltrate basic system information from the host upon installation or module import. The malicious payload includes the host's IP address and username.\n\nThe attack vector involved overriding the install command in setup.py to execute the malicious code during the package installation process, ensuring execution before the package is fully installed.\n\nThe package was classified as a low-harm pentest-style package with limited risk scope, as it only collects and exfiltrates basic host information without additional destructive capabilities.\n\nThe incident was identified and credited to the OpenSSF's malicious-packages repository (MAL-2026-2183).

Indicators of compromise

Packages
  • yeshsurya

Remediation

  • Remove the yeshsurya package from any systems where it was installed
  • Audit systems that installed yeshsurya for signs of compromise or data exfiltration
  • Review network logs for suspicious outbound connections from affected systems
  • Check PyPI for any similar packages with suspicious names or behavior
  • Use package verification tools and security scanning in CI/CD pipelines to detect malicious packages before installation

Sources

  1. GitHub Advisory GHSA-vf4p-3wqv-fjr3 · GitHub Advisory Database

Cite this entry

"Malicious code in yeshsurya (PyPI)." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 21, 2026; last updated July 21, 2026. https://supplychainattack.org/incident/malicious-code-in-yeshsurya-pypi-r5d7zj

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