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Malicious code in zztest17785553805 (RubyGems)

Malicious code was discovered in the RubyGems package zztest17785553805. The package was identified and cataloged by the OpenSSF malicious packages project.

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Disclosed
Last updated
Blast radius
Low (test package with limited adoption)
Ecosystems
RubyGems
Attack vectors
Compromised package
Affected entities
  • zztest17785553805RubyGems package containing malicious code

A RubyGems package named zztest17785553805 was found to contain malicious code. The package was identified and documented by the OpenSSF's malicious packages tracking initiative.\n\nThe incident was published on 2026-07-18 and assigned GitHub Security Advisory GHSA-gh79-cg62-9ppj. The malicious package was cataloged in the OpenSSF malicious packages repository with identifier MAL-2026-9982.\n\nUsers who have installed this package should remove it immediately and audit their systems for any unauthorized activity.

Indicators of compromise

Packages
  • zztest17785553805

Remediation

  • Remove the zztest17785553805 package from all affected systems
  • Audit systems for any unauthorized changes or activity
  • Review package dependencies to ensure no other malicious packages are installed
  • Update to a safe version or alternative package if available

Sources

  1. GitHub Advisory GHSA-gh79-cg62-9ppj · GitHub Advisory Database

Cite this entry

"Malicious code in zztest17785553805 (RubyGems)." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 18, 2026; last updated July 18, 2026. https://supplychainattack.org/incident/malicious-code-in-zztest17785553805-rubygems-1j1sds

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