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Malware in @zahlen/checkout-angular

Malware discovered in the npm package @zahlen/checkout-angular. 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
  • @zahlen/checkout-angular

A malware incident was identified in the npm package @zahlen/checkout-angular, published on GitHub's advisory database on 2026-08-06.\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 actions required include rotating all secrets and keys from a different, uncompromised computer, and removing the package. However, due to the level of system compromise, removal of the package alone may not eliminate all malicious software that was installed as a result.\n\nAffected users should assume complete system compromise and take appropriate incident response measures.

Indicators of compromise

Packages
  • @zahlen/checkout-angular

Remediation

  • Immediately rotate all secrets, keys, and credentials from a different, uncompromised computer
  • Remove the @zahlen/checkout-angular package from all affected systems
  • Perform a full security audit and malware scan of all systems that had this package installed
  • Review system logs and network traffic for signs of unauthorized access or data exfiltration
  • Consider full system reimaging if the package was installed on production or sensitive systems
  • Notify relevant stakeholders and security teams of the compromise

Sources

  1. GitHub Advisory GHSA-x4vv-h5rq-v2hm · GitHub Advisory Database

Cite this entry

"Malware in @zahlen/checkout-angular." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed August 6, 2026; last updated August 6, 2026. https://supplychainattack.org/incident/malware-in-zahlen-checkout-angular-8s76fs

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