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containedcritical

Malware in @gocortexio/npmgremlinbox-typosquat-webpack

Malware discovered in the npm package @gocortexio/npmgremlinbox-typosquat-webpack, a typosquatting attack. Systems with this package installed are 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
  • @gocortexio/npmgremlinbox-typosquat-webpack

A malicious npm package named @gocortexio/npmgremlinbox-typosquat-webpack was identified as containing malware. The package name appears to be a typosquatting variant designed to deceive users into installing it instead of a legitimate package.\n\nAccording to the advisory, any computer with this package installed or running should be considered fully compromised. The malware grants outside entities full control of affected systems.\n\nImmediate action is required to mitigate the compromise, including removal of the package and rotation of all secrets and keys from a separate, uncompromised system. However, due to the level of system compromise, there is no guarantee that package removal alone will eliminate all malicious software installed as a result of the initial compromise.

Indicators of compromise

Packages
  • @gocortexio/npmgremlinbox-typosquat-webpack

Remediation

  • Immediately remove the @gocortexio/npmgremlinbox-typosquat-webpack package from all affected systems
  • Rotate all secrets, API keys, credentials, and authentication tokens from a separate, uncompromised computer
  • Perform a full security audit and malware scan of any system that had this 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
  • Audit npm dependencies and lock files to prevent similar typosquatting attacks in the future

Sources

  1. GitHub Advisory GHSA-4wcr-8537-v2ww · GitHub Advisory Database

Cite this entry

"Malware in @gocortexio/npmgremlinbox-typosquat-webpack." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 20, 2026; last updated July 20, 2026. https://supplychainattack.org/incident/malware-in-gocortexio-npmgremlinbox-typosquat-webpack-vuuiyc

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