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resolvedcritical

Malicious code in yellyproxies (PyPI)

Malicious code was discovered in the yellyproxies package on PyPI. The package contained malicious functionality that could compromise systems of users who installed it.

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Disclosed
Last updated
Blast radius
All users who installed affected versions of yellyproxies from PyPI
Ecosystems
PyPI
Attack vectors
Compromised package
Affected entities
  • yellyproxiesPyPI package

The yellyproxies package on PyPI was found to contain malicious code. This incident was identified and documented by the OpenSSF's malicious-packages project.\n\nThe malicious package was published to the Python Package Index, making it available for installation by users. Any system that installed the affected versions of yellyproxies would have been compromised.\n\nThe incident was tracked under the identifier GHSA-w3w4-49m4-5gr3 and documented in the OpenSSF malicious-packages repository as MAL-2024-6250.

Indicators of compromise

Packages
  • yellyproxies

Remediation

  • Remove yellyproxies from affected systems immediately
  • Audit systems that had yellyproxies installed for signs of compromise
  • Review package dependencies to identify any reliance on yellyproxies
  • Use only verified, trusted packages from PyPI
  • Monitor PyPI security advisories for similar incidents

Sources

  1. GitHub Advisory GHSA-w3w4-49m4-5gr3 · GitHub Advisory Database

Cite this entry

"Malicious code in yellyproxies (PyPI)." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 21, 2026; last updated July 21, 2026. https://supplychainattack.org/incident/malicious-code-in-yellyproxies-pypi-1d7kjr

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