Malicious code in zzpdfvar00 (RubyGems)
Malicious code was discovered in the zzpdfvar00 RubyGems package. The package was identified by the OpenSSF malicious packages project and assigned identifier MAL-2026-9957.
- Disclosed
- Last updated
- Blast radius
- All users of the zzpdfvar00 RubyGems package
- Ecosystems
- Attack vectors
- Affected entities
- zzpdfvar00RubyGems package
The zzpdfvar00 package on RubyGems was found to contain malicious code. This discovery was made and documented by the OpenSSF's malicious packages project, which maintains a catalog of known malicious software supply chain incidents.\n\nThe package was assigned the malicious package identifier MAL-2026-9957 and reported through GitHub's advisory system (GHSA-c3jc-j2jx-32gv). The incident was published on July 18, 2026.\n\nAny system that installed or used the zzpdfvar00 package may have been affected by the malicious code.
Indicators of compromise
- Packages
- zzpdfvar00
Remediation
- Remove the zzpdfvar00 package from all systems where it was installed
- Audit systems that had the package installed for signs of compromise
- Update to a clean version if a legitimate replacement is available
- Review RubyGems advisory GHSA-c3jc-j2jx-32gv for additional details and guidance
Sources
- GitHub Advisory GHSA-c3jc-j2jx-32gv · GitHub Advisory Database
Cite this entry
"Malicious code in zzpdfvar00 (RubyGems)." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 18, 2026; last updated July 18, 2026. https://supplychainattack.org/incident/malicious-code-in-zzpdfvar00-rubygems-15o2lz
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