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containedcritical

Malware in classwind-utils

Malware was discovered in the npm package classwind-utils. Systems with this package installed or running 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
npm
Attack vectors
Compromised package
Affected entities
  • classwind-utilsnpm package containing malware

The npm package classwind-utils was found to contain malware. According to the GitHub Advisory (GHSA-ghrw-2645-5c47), any computer with this package installed or running should be considered fully compromised.\n\nImmediate action is required: all secrets and keys stored on affected computers should be rotated from a different, uncompromised system. While the package should be removed, there is no guarantee that removal will eliminate all malicious software that may have been installed as a result of the compromise.\n\nThe advisory was published on 2026-06-08 via the GitHub Advisory Database."

Indicators of compromise

Packages
  • classwind-utils

Remediation

  • Immediately rotate all secrets and keys from a different, uncompromised computer
  • Remove the classwind-utils package from all affected systems
  • Conduct a full security audit of any system that had this package installed
  • Monitor affected systems for signs of persistent compromise or lateral movement
  • Review and revoke any credentials or access tokens that may have been exposed

Sources

  1. GitHub Advisory GHSA-ghrw-2645-5c47 · GitHub Advisory Database

Cite this entry

"Malware in classwind-utils." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed June 8, 2026; last updated June 8, 2026. https://supplychainattack.org/incident/malware-in-classwind-utils-1vnpov

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