Malicious code in zztest1778552006 (RubyGems)
Malicious code was discovered in the RubyGems package zztest1778552006. The package was identified and cataloged by the OpenSSF malicious packages project.
- Disclosed
- Last updated
- Blast radius
- Low (test package with limited adoption)
- Ecosystems
- Attack vectors
- Affected entities
- zztest1778552006RubyGems package containing malicious code
A RubyGems package named zztest1778552006 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\nThe package was assigned identifier MAL-2026-9977 in the OpenSSF malicious packages database. Given the package name pattern and OpenSSF tracking, this appears to be a test or intentionally seeded malicious package used for research or detection validation purposes.\n\nThe incident was disclosed on 2026-07-18 via GitHub Security Advisory GHSA-gfv4-8524-cgrq.
Indicators of compromise
- Packages
- zztest1778552006
Remediation
- Remove zztest1778552006 from any Ruby environments or Gemfiles
- Audit systems that may have installed this package for any suspicious activity
- Review RubyGems dependency manifests to ensure no production dependencies on this package
- Monitor for similar test or suspicious package names in your dependency chain
Sources
- GitHub Advisory GHSA-gfv4-8524-cgrq · GitHub Advisory Database
Cite this entry
"Malicious code in zztest1778552006 (RubyGems)." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 18, 2026; last updated July 18, 2026. https://supplychainattack.org/incident/malicious-code-in-zztest1778552006-rubygems-1r9vmy
Suggest a correction
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