Malware in rollup-plugin-polyfill-hold
Malware discovered in the npm package rollup-plugin-polyfill-hold. 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-hold
The npm package rollup-plugin-polyfill-hold has been identified as containing malware. According to the GitHub Security Advisory (GHSA-7p2c-jxw4-jxvv), any computer with this package installed or running should be considered fully compromised.
The advisory recommends immediate rotation of all secrets and keys stored on affected computers 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, as the attacker may have gained full control of the system.
Users should treat any system that has had this package installed as potentially compromised and take appropriate incident response measures.
Indicators of compromise
- Packages
- rollup-plugin-polyfill-hold
Remediation
- Immediately rotate all secrets, API keys, and credentials from a different, uncompromised computer
- Remove the rollup-plugin-polyfill-hold package from all affected systems
- Conduct a full security audit and malware scan of any system that had this package installed
- Review system logs and access logs for any 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 systems are involved
Sources
- GitHub Advisory GHSA-7p2c-jxw4-jxvv · GitHub Advisory Database
Cite this entry
"Malware in rollup-plugin-polyfill-hold." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 31, 2026; last updated July 31, 2026. https://supplychainattack.org/incident/malware-in-rollup-plugin-polyfill-hold-13bumw
Suggest a correction
Found an error or have a newer source? Corrections to factual errors take priority over new entries.
Related incidents
- activecritical
Malware in @0xlr/sentry-web
The npm package @0xlr/sentry-web contains malware that grants full control of affected systems. Any computer with this package installed should be considered fully compromised.
npmCompromised package - containedcritical
Malware in @0xlr/stripe-checkout-js
Malware was discovered in the npm package @0xlr/stripe-checkout-js. Systems with this package installed are considered fully compromised and require immediate remediation.
npmCompromised package - activecritical
Malware in @0xlr/clerk-auth
Malware was discovered in the npm package @0xlr/clerk-auth. Systems with this package installed are considered fully compromised and require immediate remediation.
npmCompromised package - containedcritical
Malware in vite-tsconfig-svg
Malware was discovered in the npm package vite-tsconfig-svg. Any system with this package installed or running should be considered fully compromised.
npmCompromised package