Versions of the npm CLI prior to 6.13.3 are vulnerable to an Arbitrary File Write. It fails to prevent access to folders outside of the intended node_modules folder through the bin field. A properly constructed entry in the package.json bin field would allow a package publisher to modify and/or gain access to arbitrary files on a user's system when the package is installed. This behavior is still possible through install scripts. This vulnerability bypasses a user using the --ignore-scripts install option.
https://www.oracle.com/security-alerts/cpujan2020.html
https://github.com/npm/cli/security/advisories/GHSA-x8qc-rrcw-4r46
https://blog.npmjs.org/post/189618601100/binary-planting-with-the-npm-cli
https://access.redhat.com/errata/RHSA-2020:0602
https://access.redhat.com/errata/RHSA-2020:0597
https://access.redhat.com/errata/RHSA-2020:0579
https://access.redhat.com/errata/RHSA-2020:0573
https://access.redhat.com/errata/RHEA-2020:0330
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00027.html