Malware in @gocortexio/npmgremlinbox-cc-by-sa-4-0
Malware was discovered in the npm package @gocortexio/npmgremlinbox-cc-by-sa-4-0. Systems with this package installed or running should be considered fully compromised, requiring immediate rotation of all secrets and keys from a separate computer.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- @gocortexio/npmgremlinbox-cc-by-sa-4-0
A malicious npm package @gocortexio/npmgremlinbox-cc-by-sa-4-0 was identified as containing malware. Any computer that has installed or executed this package should be treated as fully compromised.\n\nImmediate remediation requires rotating all secrets and cryptographic keys from a different, unaffected computer. While the package should be removed, complete removal of all malicious artifacts cannot be guaranteed due to the potential for the attacker to have gained full system control during the compromise.\n\nThe incident was disclosed on 2026-07-20 via GitHub Security Advisory GHSA-mwvx-43ff-rfhg.
Indicators of compromise
- Packages
- @gocortexio/npmgremlinbox-cc-by-sa-4-0
Remediation
- Immediately rotate all secrets, API keys, and cryptographic credentials from a separate, unaffected computer
- Remove the package @gocortexio/npmgremlinbox-cc-by-sa-4-0 from all affected systems
- Perform a full security audit and malware scan of any system that had this package installed or running
- Review system logs and network traffic for signs of unauthorized access or data exfiltration
- Consider the affected system(s) as potentially compromised and plan for full rebuild if critical infrastructure
Sources
- GitHub Advisory GHSA-mwvx-43ff-rfhg · GitHub Advisory Database
Cite this entry
"Malware in @gocortexio/npmgremlinbox-cc-by-sa-4-0." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 20, 2026; last updated July 20, 2026. https://supplychainattack.org/incident/malware-in-gocortexio-npmgremlinbox-cc-by-sa-4-0-1169i1
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