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supplychainattack.orgSupply chain attack incident catalog
resolvedhigh

Malicious code in abseil-py (PyPI)

Malicious code was published in the abseil-py package on PyPI that exfiltrates basic host information (IP address, username) during installation. The package overrides the install command in setup.py to execute the malicious code.

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Disclosed
Last updated
Blast radius
PyPI users who installed the malicious abseil-py package
Ecosystems
PyPI
Attack vectors
Compromised package
Affected entities
  • abseil-pyMalicious package on PyPI

A malicious version of abseil-py was published on PyPI containing code designed to exfiltrate basic system information from the host machine, including IP address and username. The attack was executed by overriding the install command in setup.py to run malicious code during package installation.

The malicious package was identified and attributed to the source kam193 (hash: 6b0ae8e92b62a5524d9ca665a07b3139a9cd4af2af0a0016dc6d425ecc2cc72e). The OpenSSF malicious-packages repository cataloged this incident as MAL-2026-10760.

The attack was classified as a low-harm pentest-style package with limited risk scope, as it only performed basic data exfiltration without additional destructive or persistent capabilities. The incident was reported through the GitHub Advisory Database (GHSA-94ch-c5j7-22jq).

Indicators of compromise

Packages
  • abseil-py

Remediation

  • Remove the malicious abseil-py package from affected systems
  • Audit systems that installed the malicious package for signs of data exfiltration or compromise
  • Use only official abseil-py releases from trusted sources
  • Monitor PyPI for similar typosquatting or compromised package variants
  • Consider using package verification and integrity checking tools in your supply chain

Sources

  1. GitHub Advisory GHSA-94ch-c5j7-22jq · GitHub Advisory Database

Cite this entry

"Malicious code in abseil-py (PyPI)." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 21, 2026; last updated July 21, 2026. https://supplychainattack.org/incident/malicious-code-in-abseil-py-pypi-1r70kn

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