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containedcritical

Malware in @gocortexio/npmgremlinbox-copyleft-next-0-3-1

Malware was discovered in npm package @gocortexio/npmgremlinbox-copyleft-next version 0-3-1. Systems with this package installed are considered fully compromised and require immediate remediation.

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Blast radius
Any system with the package installed or running
Ecosystems
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Affected entities
  • @gocortexio/npmgremlinbox-copyleft-next · 0-3-1

A malicious npm package @gocortexio/npmgremlinbox-copyleft-next version 0-3-1 was identified and published on GitHub's advisory database. The package contains malware that grants full control of affected systems to an outside entity.

Any computer with this package installed or running should be considered fully compromised. The advisory recommends immediate rotation of all secrets and keys from a different, unaffected computer. While the package should be removed, complete removal of all malicious software cannot be guaranteed due to the level of system compromise.

The package has been flagged with critical severity on the GitHub advisory system, indicating widespread potential impact to any users or systems that installed this version.

Indicators of compromise

Packages
  • @gocortexio/npmgremlinbox-copyleft-next@0-3-1

Remediation

  • Immediately isolate any system with this package installed from the network
  • Rotate all secrets, API keys, and credentials from a different, unaffected computer
  • Remove the package @gocortexio/npmgremlinbox-copyleft-next version 0-3-1
  • Perform a full security audit and malware scan of affected systems
  • Review system logs and access logs for signs of unauthorized activity
  • Consider full system rebuild if compromise is confirmed

Sources

  1. GitHub Advisory GHSA-2gc4-3jrf-539r · GitHub Advisory Database

Cite this entry

"Malware in @gocortexio/npmgremlinbox-copyleft-next-0-3-1." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 20, 2026; last updated July 20, 2026. https://supplychainattack.org/incident/malware-in-gocortexio-npmgremlinbox-copyleft-next-0-3-1-1areyf

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