Malware in @nebula.js/sn-action-button
Malware was discovered in the npm package @nebula.js/sn-action-button. Systems with this package installed are considered fully compromised and require immediate remediation.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- @nebula.js/sn-action-button
A critical malware incident was identified in the npm package @nebula.js/sn-action-button. According to the GitHub advisory, any computer with this package installed or running should be considered fully compromised.\n\nThe malicious package grants full control of affected systems to an outside entity. All secrets and keys stored on compromised computers must be rotated immediately from a different, unaffected system. While the package can be removed, there is no guarantee that removal will eliminate all malicious software that may have been installed as a result of the initial compromise.\n\nThis represents a critical supply chain attack through a compromised npm package with potential for widespread impact across all systems that have installed or executed the affected package.
Indicators of compromise
- Packages
- @nebula.js/sn-action-button
Remediation
- Immediately remove @nebula.js/sn-action-button from all systems
- Rotate all secrets, API keys, and credentials from a clean, unaffected computer
- Perform a full security audit and malware scan of all affected systems
- Review system logs and network traffic for signs of unauthorized access or data exfiltration
- Consider the affected systems as potentially fully compromised and plan for complete rebuild if critical systems are involved
- Notify all users and stakeholders who may have installed this package
Sources
- GitHub Advisory GHSA-4f3v-vg7g-x67h · GitHub Advisory Database
Cite this entry
"Malware in @nebula.js/sn-action-button." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed August 4, 2026; last updated August 4, 2026. https://supplychainattack.org/incident/malware-in-nebula-js-sn-action-button-1nhzr1
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