MAL-2026-19218: Malicious code in winston-loggerex (npm)
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Source: ghsa-malware (9253246c70895f03678e493917f2cf8d55f0620f606e75005b0f60310e366daa) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Remove
Remove
npm/winston-loggerexfrom your environment.Remove the winston-loggerex package.
- Operational
Immediately rotate all secrets and keys stored on any computer that has the package installed or running, using a different computer.
Event History
Frequently Asked Questions
Who should treat this as an active compromise?
Any computer where the package is installed or running should be considered fully compromised. This includes systems that may store secrets or keys, which should be rotated immediately from a different computer.
Is removing the package enough to remediate the incident?
No. The package should be removed, but removal does not guarantee that other malicious software installed as a result will be removed, because an outside entity may have obtained full control of the computer.
What should be done with credentials on an affected computer?
Rotate all secrets and keys stored on the affected computer immediately. Perform the rotation from a different computer.