Malware in @serasa/core
Malware discovered in the npm package @serasa/core. Any computer with this package installed or running should be considered fully compromised. All secrets and keys must be rotated immediately from a different computer.
- Disclosed
- Last updated
- Blast radius
- Any system with @serasa/core installed or running
- Ecosystems
- Attack vectors
- Affected entities
- @serasa/core
A critical malware incident has been identified in the npm package @serasa/core. According to the GitHub Advisory (GHSA-w2qv-ff75-53mf), any system that has 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 immediately from a different, uncompromised computer. 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 represents a critical supply chain attack through a compromised npm package with potential for widespread impact across all systems that have installed or executed this package.
Indicators of compromise
- Packages
- @serasa/core
Remediation
- Immediately isolate any computer that has @serasa/core installed or running from the network
- Rotate all secrets, API keys, credentials, and cryptographic keys from a different, uncompromised computer
- Remove the @serasa/core package from all affected systems
- Conduct a full forensic investigation of affected systems to identify any additional malicious software or persistence mechanisms
- Review system logs and network traffic for signs of unauthorized access or data exfiltration
- Consider full system reimaging if compromise is confirmed
- Audit all systems that may have been accessed or compromised through affected machines
Sources
- GitHub Advisory GHSA-w2qv-ff75-53mf · GitHub Advisory Database
Cite this entry
"Malware in @serasa/core." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed June 29, 2026; last updated June 29, 2026. https://supplychainattack.org/incident/malware-in-serasa-core-ply5q8
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