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resolvedcritical

Malicious code in zztxtwtmp12 (RubyGems)

Malicious code was discovered in the zztxtwtmp12 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 affected versions
Ecosystems
RubyGems
Attack vectors
Compromised package
Affected entities
  • zztxtwtmp12

The zztxtwtmp12 package on RubyGems was found to contain malicious code. The discovery was credited to the OpenSSF (Open Source Security Foundation) and documented in their malicious packages repository.\n\nThis incident was tracked under identifier MAL-2026-9999 in the OpenSSF malicious packages database. The malicious package was published on RubyGems and posed a supply chain risk to any Ruby projects that included this dependency.\n\nThe package has been identified and cataloged as malicious, allowing the community to take appropriate defensive measures.

Indicators of compromise

Packages
  • zztxtwtmp12

Remediation

  • Remove zztxtwtmp12 from all Gemfiles and dependency manifests
  • Audit project dependencies for any versions of zztxtwtmp12 that may have been installed
  • Review application logs and system activity for any suspicious behavior that may have resulted from the malicious package
  • Update to a clean dependency or alternative package if zztxtwtmp12 was providing legitimate functionality
  • Implement dependency scanning tools to detect known malicious packages in future

Sources

  1. GitHub Advisory GHSA-gv54-wh87-pwfr · GitHub Advisory Database

Cite this entry

"Malicious code in zztxtwtmp12 (RubyGems)." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 18, 2026; last updated July 18, 2026. https://supplychainattack.org/incident/malicious-code-in-zztxtwtmp12-rubygems-kcusmw

Suggest a correction

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