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containedcritical

Malware in @workbench-stack/core

Malware was discovered in the npm package @workbench-stack/core. Systems with this package installed or running should be considered fully compromised and require immediate remediation.

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Disclosed
Last updated
Blast radius
Any system with the package installed or running
Ecosystems
Attack vectors
Affected entities
  • @workbench-stack/core

A malicious version of the npm package @workbench-stack/core was identified and published to the npm registry. The package contains malware that grants full control of affected systems to an outside entity.\n\nAny computer with this package installed or running should be considered fully compromised. The malware may have provided attackers with complete system access, allowing them to install additional malicious software beyond the package itself.\n\nImmediate remediation is required, including rotation of all secrets and keys from a clean system. While removing the package is necessary, there is no guarantee that removal will eliminate all malicious software that may have been installed as a result of the initial compromise.

Indicators of compromise

Packages
  • @workbench-stack/core

Remediation

  • Immediately remove @workbench-stack/core from all systems
  • Rotate all secrets, keys, and credentials from a clean, unaffected computer
  • Perform a full security audit and malware scan of any system that had the package installed
  • Review system logs and network traffic for signs of unauthorized access or data exfiltration
  • Consider the affected system(s) as potentially fully compromised and plan for complete rebuild if critical systems are involved
  • Monitor for any indicators of compromise or persistence mechanisms left by the malware

Sources

  1. GitHub Advisory GHSA-qc5f-j5q7-57hf · GitHub Advisory Database

Cite this entry

"Malware in @workbench-stack/core." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed August 4, 2026; last updated August 4, 2026. https://supplychainattack.org/incident/malware-in-workbench-stack-core-2ztpsp

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