Malicious code in zwtestabc2 (RubyGems)
Malicious code was discovered in the zwtestabc2 RubyGems package. The package was identified by the OpenSSF malicious packages project and assigned identifier MAL-2026-9911.
- Disclosed
- Last updated
- Blast radius
- Potentially all users of the zwtestabc2 RubyGems package
- Ecosystems
- Attack vectors
- Affected entities
- zwtestabc2RubyGems package
The zwtestabc2 package on RubyGems was found to contain malicious code. This discovery was made and documented by the OpenSSF's malicious packages project, which maintains a catalog of known malicious software supply chain incidents.\n\nThe package was assigned the malicious package identifier MAL-2026-9911 and reported through GitHub's advisory system (GHSA-rxh3-3q6g-43fj). The incident was published on July 18, 2026.\n\nAny system that installed or used the zwtestabc2 package may have been affected by the malicious code.
Indicators of compromise
- Packages
- zwtestabc2
Remediation
- Remove the zwtestabc2 package from all systems where it was installed
- Audit systems that previously had zwtestabc2 installed for signs of compromise
- Review the OpenSSF malicious packages database for details on the specific malicious behavior
- Update dependency management tools to block or flag this package
Sources
- GitHub Advisory GHSA-rxh3-3q6g-43fj · GitHub Advisory Database
Cite this entry
"Malicious code in zwtestabc2 (RubyGems)." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 18, 2026; last updated July 18, 2026. https://supplychainattack.org/incident/malicious-code-in-zwtestabc2-rubygems-1xoqks
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