MAL-2026-6826: Malicious code in rollup-plugin-polyfill-handler (npm)
The npm package rollup-plugin-polyfill-handler version 1.0.0 contains malicious code. Any system with this package installed or running is considered fully compromised. Secrets and keys stored on the affected system should be rotated immediately from a different, secure system. Removing the package alone may not eliminate all malicious software introduced by it, as the attacker may have gained full control of the system.
AI Analysis
Technical Summary
The rollup-plugin-polyfill-handler package at version 1.0.0 is identified as containing malicious code. Installation or execution of this package can lead to a full compromise of the host system. The malicious code may allow an attacker to gain complete control, potentially exfiltrating secrets and keys. Due to the severity of the compromise, simple removal of the package is insufficient to ensure system integrity.
Potential Impact
Full system compromise on any computer with the affected package installed or running. All secrets and keys stored on the compromised system are at risk and should be considered exposed. The attacker may have persistent access beyond the presence of the package itself.
Mitigation Recommendations
Remove the rollup-plugin-polyfill-handler package version 1.0.0 immediately. Rotate all secrets and keys from a separate, secure system. Conduct a thorough investigation and remediation of the affected system, as removal of the package alone does not guarantee elimination of all malicious artifacts or attacker access.
MAL-2026-6826: Malicious code in rollup-plugin-polyfill-handler (npm)
Description
The npm package rollup-plugin-polyfill-handler version 1.0.0 contains malicious code. Any system with this package installed or running is considered fully compromised. Secrets and keys stored on the affected system should be rotated immediately from a different, secure system. Removing the package alone may not eliminate all malicious software introduced by it, as the attacker may have gained full control of the system.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The rollup-plugin-polyfill-handler package at version 1.0.0 is identified as containing malicious code. Installation or execution of this package can lead to a full compromise of the host system. The malicious code may allow an attacker to gain complete control, potentially exfiltrating secrets and keys. Due to the severity of the compromise, simple removal of the package is insufficient to ensure system integrity.
Potential Impact
Full system compromise on any computer with the affected package installed or running. All secrets and keys stored on the compromised system are at risk and should be considered exposed. The attacker may have persistent access beyond the presence of the package itself.
Mitigation Recommendations
Remove the rollup-plugin-polyfill-handler package version 1.0.0 immediately. Rotate all secrets and keys from a separate, secure system. Conduct a thorough investigation and remediation of the affected system, as removal of the package alone does not guarantee elimination of all malicious artifacts or attacker access.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-6826
- Osv Schema Version
- 1.7.4
- Aliases
- ["GHSA-h89m-q7rj-4hxm"]
- Ecosystems
- ["npm"]
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a4c345127e9c797195fd113
Added to database: 07/06/2026, 23:03:45 UTC
Last enriched: 07/06/2026, 23:29:12 UTC
Last updated: 07/07/2026, 02:17:10 UTC
Views: 31
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