Malicious code in zz-oai-test12 (RubyGems)
Malicious code was discovered in the zz-oai-test12 package on RubyGems. The package was identified and cataloged by the OpenSSF malicious packages project.
- Disclosed
- Last updated
- Blast radius
- Limited to direct consumers of the zz-oai-test12 package on RubyGems.
- Ecosystems
- Attack vectors
- Affected entities
- zz-oai-test12
A malicious package named zz-oai-test12 was published to the RubyGems package repository. The package contained malicious code and was identified as part of the OpenSSF's malicious packages tracking effort.\n\nThe incident was disclosed on July 18, 2026, and documented in GitHub Advisory GHSA-6r2m-cmpq-xcx4. The OpenSSF maintains a public repository of known malicious packages to help the community identify and avoid compromised dependencies.\n\nAny Ruby application that installed this package should be considered potentially compromised and should be audited for unauthorized changes or data exfiltration."
Indicators of compromise
- Packages
- zz-oai-test12
Remediation
- Remove the zz-oai-test12 package from all affected Ruby projects
- Audit application logs and system activity for any suspicious behavior during the period the malicious package was installed
- Review and rotate any credentials or secrets that may have been exposed
- Update to a clean version of any legitimate package if zz-oai-test12 was intended as a dependency
- Monitor for similar typosquatting or malicious package attempts targeting your projects
Sources
- GitHub Advisory GHSA-6r2m-cmpq-xcx4 · GitHub Advisory Database
Cite this entry
"Malicious code in zz-oai-test12 (RubyGems)." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 18, 2026; last updated July 18, 2026. https://supplychainattack.org/incident/malicious-code-in-zz-oai-test12-rubygems-1kcsz0
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