Malicious code in zzpdfvar04 (RubyGems)
Malicious code was discovered in the zzpdfvar04 RubyGems package. The package was identified by the OpenSSF malicious packages project and assigned identifier MAL-2026-9961.
- Disclosed
- Last updated
- Blast radius
- All users of the zzpdfvar04 RubyGems package
- Ecosystems
- Attack vectors
- Affected entities
- zzpdfvar04RubyGems package
The zzpdfvar04 package on RubyGems was found to contain malicious code. This discovery was credited to the OpenSSF (Open Source Security Foundation) through their malicious packages tracking project.\n\nThe incident was formally documented in the OpenSSF malicious packages repository and assigned the identifier MAL-2026-9961. The advisory was published on GitHub on July 18, 2026.\n\nUsers of this package should immediately remove it from their dependencies and audit their systems for any potential compromise.
Indicators of compromise
- Packages
- zzpdfvar04
Remediation
- Remove zzpdfvar04 from all project dependencies immediately
- Audit systems and applications that may have used this package for signs of compromise
- Review package dependencies for similar suspicious or typosquatted packages
- Consider using dependency scanning tools to detect other potentially malicious packages
Sources
- GitHub Advisory GHSA-3rg6-529q-2cg2 · GitHub Advisory Database
Cite this entry
"Malicious code in zzpdfvar04 (RubyGems)." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 18, 2026; last updated July 18, 2026. https://supplychainattack.org/incident/malicious-code-in-zzpdfvar04-rubygems-1kzf5d
Suggest a correction
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