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resolvedcritical

Malicious code in adv2099m (PyPI)

Malicious code was discovered in the adv2099m package on PyPI. The package was identified by the OpenSSF malicious-packages project and assigned identifier MAL-2024-4734.

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Disclosed
Last updated
Blast radius
Unknown; depends on adv2099m adoption
Ecosystems
PyPI
Attack vectors
Compromised package
Affected entities
  • adv2099mPyPI package

The adv2099m package on PyPI was found to contain malicious code. The discovery was credited to the OpenSSF's malicious-packages project, which maintains a catalog of known malicious packages in open-source ecosystems.\n\nThe incident was tracked under identifier MAL-2024-4734 in the OpenSSF's malicious-packages repository. The advisory was published on GitHub on 2026-07-21 via the GitHub Security Advisory system (GHSA-h6w2-3f9x-5hxg).\n\nNo specific details about the nature of the malicious payload, affected versions, or distribution timeline are provided in the source material.

Indicators of compromise

Packages
  • adv2099m

Remediation

  • Remove adv2099m from all environments and dependencies
  • Audit systems that may have installed adv2099m for signs of compromise
  • Review PyPI package installation logs to identify affected systems
  • Use dependency scanning tools to detect adv2099m in supply chains

Sources

  1. GitHub Advisory GHSA-h6w2-3f9x-5hxg · GitHub Advisory Database

Cite this entry

"Malicious code in adv2099m (PyPI)." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 21, 2026; last updated July 21, 2026. https://supplychainattack.org/incident/malicious-code-in-adv2099m-pypi-1l8bxw

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