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Malware in @sixt-payment/form-react

Malware discovered in the npm package @sixt-payment/form-react. 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
  • @sixt-payment/form-react

A malicious package, @sixt-payment/form-react, was identified on npm. According to the GitHub Advisory (GHSA-8cxm-2pmw-c822), 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 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 package installation, as the attacker may have gained full control of the system.\n\nThis is a critical supply chain incident affecting npm users who installed this package.

Indicators of compromise

Packages
  • @sixt-payment/form-react

Remediation

  • Immediately remove the @sixt-payment/form-react package from all affected systems
  • Rotate all secrets, keys, and credentials from a different, uncompromised computer
  • Assume full system compromise and conduct forensic analysis
  • Review system logs for unauthorized access or modifications
  • Consider rebuilding affected systems from clean media if full compromise is suspected
  • Audit all systems that may have been exposed to this package for signs of malicious activity

Sources

  1. GitHub Advisory GHSA-8cxm-2pmw-c822 · GitHub Advisory Database

Cite this entry

"Malware in @sixt-payment/form-react." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed June 29, 2026; last updated June 29, 2026. https://supplychainattack.org/incident/malware-in-sixt-payment-form-react-1v32yd

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