Malware in @gocortexio/npmgremlinbox-copyleft-next-0-3-0
The npm package @gocortexio/npmgremlinbox-copyleft-next-0-3-0 contains malware that grants full control of affected systems. Any computer with this package installed should be considered fully compromised and all secrets and keys rotated immediately from a different machine.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- @gocortexio/npmgremlinbox-copyleft-next-0-3-0 · 0-3-0
A malicious npm package, @gocortexio/npmgremlinbox-copyleft-next-0-3-0, was identified and published to the npm registry. The package contains malware that provides full system compromise to an outside entity.
Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on affected computers should be rotated immediately from a different, unaffected computer.
While the package should be removed, complete remediation cannot be guaranteed due to the potential for full system control having been granted to an external actor. Additional forensic investigation and system hardening may be necessary beyond simple package removal.
The incident was disclosed via GitHub Advisory GHSA-h79m-rf9m-2rw3 on 2026-07-20.
Indicators of compromise
- Packages
- @gocortexio/npmgremlinbox-copyleft-next-0-3-0
Remediation
- Immediately remove the @gocortexio/npmgremlinbox-copyleft-next-0-3-0 package from all affected systems
- Rotate all secrets, API keys, and credentials from a different, unaffected computer
- Assume full system compromise and consider rebuilding affected machines from clean media
- Audit system logs and network traffic for signs of unauthorized access or data exfiltration
- Scan systems with updated antimalware tools, though full remediation may not be possible
- Review and revoke any access tokens or credentials that may have been exposed
Sources
- GitHub Advisory GHSA-h79m-rf9m-2rw3 · GitHub Advisory Database
Cite this entry
"Malware in @gocortexio/npmgremlinbox-copyleft-next-0-3-0." 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-0-3-0-16vj46
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