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resolvedcritical

Malicious code in zzfadgivar00 (RubyGems)

Malicious code was published in the zzfadgivar00 RubyGems package. The package was identified and reported by the OpenSSF malicious packages project.

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Disclosed
Last updated
Blast radius
Unknown; depends on adoption of the malicious package versions
Ecosystems
RubyGems
Attack vectors
Compromised package
Affected entities
  • zzfadgivar00

The RubyGems package zzfadgivar00 contained malicious code and was identified as part of the OpenSSF's malicious packages tracking effort. The package was published to the public RubyGems repository and could have been installed by developers who depended on it.\n\nThe incident was documented in the OpenSSF malicious packages repository under identifier MAL-2026-9936. GitHub's advisory database (GHSA-c2jw-7gmx-jfwj) was published on 2026-07-18 to alert the community.\n\nNo specific technical details about the malicious payload or its behavior are provided in the source material.

Indicators of compromise

Packages
  • zzfadgivar00

Remediation

  • Remove the zzfadgivar00 package from all dependencies and lock files
  • Audit any systems that may have installed this package for signs of compromise
  • Review the OpenSSF malicious packages repository for additional context and indicators of compromise
  • Update to a safe version if a legitimate replacement exists, or remove the dependency entirely

Sources

  1. GitHub Advisory GHSA-c2jw-7gmx-jfwj · GitHub Advisory Database

Cite this entry

"Malicious code in zzfadgivar00 (RubyGems)." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 18, 2026; last updated July 18, 2026. https://supplychainattack.org/incident/malicious-code-in-zzfadgivar00-rubygems-1q8mjk

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