Malicious code in zzpdfvar06 (RubyGems)
Malicious code was discovered in the zzpdfvar06 RubyGems package. The package was identified by the OpenSSF malicious packages project and reported via GitHub Advisory GHSA-qc82-ff9w-gw63.
- Disclosed
- Last updated
- Blast radius
- Unknown; depends on adoption of affected versions
- Ecosystems
- Attack vectors
- Affected entities
- zzpdfvar06
The RubyGems package zzpdfvar06 was found to contain malicious code. The 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 2026-07-18 and assigned GitHub Advisory identifier GHSA-qc82-ff9w-gw63. The malicious package entry is tracked in the OpenSSF repository under MAL-2026-9963.\n\nUsers of this package should immediately remove it from their dependencies and audit their systems for any compromise.
Indicators of compromise
- Packages
- zzpdfvar06
Remediation
- Remove zzpdfvar06 from all Gemfiles and dependency manifests
- Audit systems that may have installed or executed code from zzpdfvar06
- Review application logs for suspicious activity during the period the malicious package was in use
- Consider rotating credentials and secrets that may have been exposed
- Monitor for indicators of compromise related to this package
Sources
- GitHub Advisory GHSA-qc82-ff9w-gw63 · GitHub Advisory Database
Cite this entry
"Malicious code in zzpdfvar06 (RubyGems)." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 18, 2026; last updated July 18, 2026. https://supplychainattack.org/incident/malicious-code-in-zzpdfvar06-rubygems-m11gua
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