Malicious code in zzpdfvar09 (RubyGems)
Malicious code was discovered in the zzpdfvar09 RubyGems package. The package was identified by the OpenSSF malicious packages project and reported via GitHub Security Advisory GHSA-qj6m-p9hc-6v3r.
- Disclosed
- Last updated
- Blast radius
- Unknown; depends on adoption of affected versions
- Ecosystems
- Attack vectors
- Affected entities
- zzpdfvar09
The zzpdfvar09 package on RubyGems was found to contain malicious code. This discovery was credited to the OpenSSF's malicious packages project, which maintains a catalog of known malicious software supply chain incidents.\n\nThe advisory was published on July 18, 2026, and assigned GitHub Security Advisory identifier GHSA-qj6m-p9hc-6v3r. The malicious package entry is tracked in the OpenSSF's malicious packages repository under MAL-2026-9966.\n\nUsers who have installed zzpdfvar09 should immediately remove or update the package to a safe version if available.
Indicators of compromise
- Packages
- zzpdfvar09
Remediation
- Remove zzpdfvar09 from all affected systems immediately
- Audit systems that may have executed code from zzpdfvar09 for signs of compromise
- Check RubyGems for any safe alternative packages that provide similar functionality
- Review application dependencies to ensure no other malicious packages are present
Sources
- GitHub Advisory GHSA-qj6m-p9hc-6v3r · GitHub Advisory Database
Cite this entry
"Malicious code in zzpdfvar09 (RubyGems)." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 18, 2026; last updated July 18, 2026. https://supplychainattack.org/incident/malicious-code-in-zzpdfvar09-rubygems-dzudjm
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