Malicious code in zzpdfvar08 (RubyGems)
Malicious code was discovered in the zzpdfvar08 RubyGems package. The package was identified by the OpenSSF malicious-packages project as containing malicious code.
- Disclosed
- Last updated
- Blast radius
- Unknown; depends on adoption of affected versions
- Ecosystems
- Attack vectors
- Affected entities
- zzpdfvar08
The zzpdfvar08 package on RubyGems was found to contain malicious code. The discovery was credited to the OpenSSF's malicious-packages project, which maintains a catalog of known malicious packages across multiple ecosystems.\n\nThe malicious package was tracked under identifier MAL-2026-9965 in the OpenSSF's malicious package database. This indicates the package was intentionally published with harmful code rather than being a legitimate package that was subsequently compromised.\n\nUsers of the zzpdfvar08 package should immediately cease use and remove any installations from their systems.
Indicators of compromise
- Packages
- zzpdfvar08
Remediation
- Remove all installations of zzpdfvar08 from your systems
- Audit your Gemfile and dependency manifests to identify where zzpdfvar08 was used
- Review any systems that may have executed code from zzpdfvar08 for signs of compromise
- Update your application dependencies to remove the zzpdfvar08 dependency
- Consult the OpenSSF malicious-packages repository for additional technical details about the malicious behavior
Sources
- GitHub Advisory GHSA-x457-99j6-63cf · GitHub Advisory Database
Cite this entry
"Malicious code in zzpdfvar08 (RubyGems)." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 18, 2026; last updated July 18, 2026. https://supplychainattack.org/incident/malicious-code-in-zzpdfvar08-rubygems-1qrsza
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