Malware in js-shared-modules
Malware was discovered in the npm package js-shared-modules. Systems with this package installed or running are considered fully compromised, with potential for complete system takeover.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- js-shared-modules
The npm package js-shared-modules was found to contain malware. According to the GitHub Security Advisory (GHSA-57xw-xm2f-j2wc), any computer with this package installed or running should be considered fully compromised.
The 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, given the potential for complete system compromise.
Users should treat any system that has run this package as potentially fully controlled by an outside entity and take appropriate incident response measures.
Indicators of compromise
- Packages
- js-shared-modules
Remediation
- Immediately isolate any system that has installed or run js-shared-modules from the network
- Rotate all secrets, API keys, and credentials from a different, uncompromised computer
- Remove the js-shared-modules package from all affected systems
- Conduct a full forensic investigation of affected systems to identify any additional malicious software
- Review system logs and network traffic for signs of unauthorized access or data exfiltration
- Consider full system reimaging if complete compromise is suspected
Sources
- GitHub Advisory GHSA-57xw-xm2f-j2wc · GitHub Advisory Database
Cite this entry
"Malware in js-shared-modules." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 15, 2026; last updated July 15, 2026. https://supplychainattack.org/incident/malware-in-js-shared-modules-9vpdjn
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