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resolvedcritical

Malicious code in adm4 (PyPI)

Malicious code was discovered in the adm4 package on PyPI. The incident was identified and documented by the OpenSSF malicious packages project.

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Disclosed
Last updated
Blast radius
Unknown; depends on adm4 adoption and which versions were affected
Ecosystems
PyPI
Attack vectors
Compromised package
Affected entities
  • adm4PyPI package

A malicious code injection was identified in the adm4 package hosted on PyPI. The vulnerability was credited to the OpenSSF's malicious packages tracking initiative, which maintains a catalog of known malicious software supply chain incidents.\n\nThe incident is documented under OpenSSF reference MAL-2024-4731 and was published as GitHub Advisory GHSA-4x56-383f-4ff9 on July 21, 2026. The malicious package was available on the Python Package Index (PyPI) and posed a critical risk to any systems that installed the affected versions.

Indicators of compromise

Packages
  • adm4

Remediation

  • Remove adm4 from affected systems immediately
  • Audit systems that installed adm4 for signs of compromise
  • Review PyPI security advisories for the specific affected versions
  • Use dependency scanning tools to identify adm4 in supply chains
  • Consider using package verification and integrity checking mechanisms

Sources

  1. GitHub Advisory GHSA-4x56-383f-4ff9 · GitHub Advisory Database

Cite this entry

"Malicious code in adm4 (PyPI)." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 21, 2026; last updated July 21, 2026. https://supplychainattack.org/incident/malicious-code-in-adm4-pypi-1g7tjv

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