Malware in localization-lib
Malware discovered in the npm package localization-lib. 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
- localization-lib
A critical malware incident was identified in the npm package localization-lib. According to the GitHub Advisory (GHSA-2qhv-h564-p9rm), any computer with this package installed or running should be considered fully compromised.\n\nThe advisory recommends immediate action: all secrets and keys stored on affected computers should be rotated from a different, uncompromised system. The package should be removed, though there is no guarantee that removal will eliminate all malicious software that may have been installed as a result of the compromise.\n\nThis represents a critical supply chain attack through a compromised package in the npm ecosystem, with potential for complete system compromise on any machine where the package was installed or executed.
Indicators of compromise
- Packages
- localization-lib
Remediation
- Immediately remove the localization-lib package from all systems
- Rotate all secrets, API keys, and credentials from a different, uncompromised computer
- Audit system logs for unauthorized access or activity during the period the package was installed
- Consider the affected systems as potentially fully compromised and plan for complete rebuild if critical infrastructure
- Monitor for any persistence mechanisms or additional malware that may have been installed
Sources
- GitHub Advisory GHSA-2qhv-h564-p9rm · GitHub Advisory Database
Cite this entry
"Malware in localization-lib." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 10, 2026; last updated July 10, 2026. https://supplychainattack.org/incident/malware-in-localization-lib-1wxqdn
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