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containedcritical

Malware in checkout-common-tokens

Malware was discovered in the npm package checkout-common-tokens. 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
  • checkout-common-tokens

The npm package checkout-common-tokens was found to contain malware. According to the GitHub Security Advisory (GHSA-89gj-h4r8-g8gm), any computer with this package installed or running should be considered fully compromised.\n\nThe advisory recommends that all secrets and keys stored on affected computers be rotated immediately from a different, uncompromised system. While the malicious 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 package should be treated as a complete system compromise requiring full remediation and credential rotation.

Indicators of compromise

Packages
  • checkout-common-tokens

Remediation

  • Immediately isolate any system with checkout-common-tokens installed from the network
  • Rotate all secrets, API keys, and credentials from a different, uncompromised computer
  • Remove the checkout-common-tokens package from all affected systems
  • Perform a full security audit and malware scan of affected systems
  • Review system logs for any unauthorized access or activity during the period the package was installed
  • Consider full system reimaging if the package was installed on production or sensitive systems

Sources

  1. GitHub Advisory GHSA-89gj-h4r8-g8gm · GitHub Advisory Database

Cite this entry

"Malware in checkout-common-tokens." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed August 18, 2026; last updated August 18, 2026. https://supplychainattack.org/incident/malware-in-checkout-common-tokens-72dic0

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