Malware in rollup-plugin-polyfill-connect
Malware discovered in the npm package rollup-plugin-polyfill-connect. 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
- rollup-plugin-polyfill-connect
The npm package rollup-plugin-polyfill-connect has been identified as containing malware. According to the GitHub Advisory (GHSA-97cf-xxww-v429), any computer with this package installed or running should be considered fully compromised.\n\nThe advisory indicates that the malware provides full control of affected systems to an outside entity. Immediate action is required to mitigate the compromise, including rotation of all secrets and keys from a different, unaffected computer.\n\nWhile removal of the package is recommended, there is no guarantee that uninstalling it will remove all malicious software that may have been installed as a result of the compromise.
Indicators of compromise
- Packages
- rollup-plugin-polyfill-connect
Remediation
- Immediately isolate any computer with rollup-plugin-polyfill-connect installed from the network
- Rotate all secrets, API keys, credentials, and signing keys from a different, unaffected computer
- Remove the rollup-plugin-polyfill-connect package from all affected systems
- Perform a full security audit and malware scan of affected systems
- Review system logs and access logs for signs of unauthorized activity during the period the package was installed
- Consider the affected system(s) as potentially fully compromised and plan for complete rebuild if critical infrastructure
Sources
- GitHub Advisory GHSA-97cf-xxww-v429 · GitHub Advisory Database
Cite this entry
"Malware in rollup-plugin-polyfill-connect." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed June 26, 2026; last updated June 29, 2026. https://supplychainattack.org/incident/malware-in-rollup-plugin-polyfill-connect-1xxxgi
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