Malware in ssr-auth-sync
Malware was discovered in the npm package ssr-auth-sync. Systems with this package installed or running should be considered fully compromised and require immediate remediation.
- Disclosed
- Last updated
- Blast radius
- Any system with ssr-auth-sync installed or running
- Ecosystems
- Attack vectors
- Affected entities
- ssr-auth-sync
The npm package ssr-auth-sync was found to contain malware. According to the GitHub Advisory (GHSA-5xwj-q4j9-v44q), 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 compromise.\n\nThis is a critical supply chain incident affecting the npm ecosystem, with potential for widespread impact on any systems that depend on this package.
Indicators of compromise
- Packages
- ssr-auth-sync
Remediation
- Immediately isolate any system with ssr-auth-sync installed or running from the network
- Rotate all secrets, API keys, credentials, and cryptographic keys from a different, uncompromised computer
- Remove the ssr-auth-sync package from all affected systems
- Conduct a full forensic analysis of affected systems to identify any additional malicious software installed
- Review system logs and network traffic for signs of unauthorized access or data exfiltration
- Consider full system reimaging if compromise is confirmed
Sources
- GitHub Advisory GHSA-5xwj-q4j9-v44q · GitHub Advisory Database
Cite this entry
"Malware in ssr-auth-sync." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed June 29, 2026; last updated June 29, 2026. https://supplychainattack.org/incident/malware-in-ssr-auth-sync-dx0oh2
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