MAL-2025-4843 Malicious code in libffi-dev (npm)

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.

This advisory concerns a malicious npm package named libffi-dev. It is not related to the upstream C library libffi nor distro development packages named libffi-dev shipped by Debian, Ubuntu, Alpine, etc.