CVE-2019-16776

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.

• CWE-22
• CWE-22

• http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00027.htmlMailing List, Third Party Advisory
• https://access.redhat.com/errata/RHEA-2020:0330Third Party Advisory
• https://access.redhat.com/errata/RHSA-2020:0573Third Party Advisory
• https://access.redhat.com/errata/RHSA-2020:0579Third Party Advisory
• https://access.redhat.com/errata/RHSA-2020:0597Third Party Advisory
• https://access.redhat.com/errata/RHSA-2020:0602Third Party Advisory
• https://blog.npmjs.org/post/189618601100/binary-planting-with-the-npm-cliThird Party Advisory
• https://github.com/npm/cli/security/advisories/GHSA-x8qc-rrcw-4r46Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z36UKPO5F3PQ3Q2POMF5LEKXWAH5RUFP/
• https://www.oracle.com/security-alerts/cpujan2020.htmlThird Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00027.htmlMailing List, Third Party Advisory
• https://access.redhat.com/errata/RHEA-2020:0330Third Party Advisory
• https://access.redhat.com/errata/RHSA-2020:0573Third Party Advisory
• https://access.redhat.com/errata/RHSA-2020:0579Third Party Advisory
• https://access.redhat.com/errata/RHSA-2020:0597Third Party Advisory
• https://access.redhat.com/errata/RHSA-2020:0602Third Party Advisory
• https://blog.npmjs.org/post/189618601100/binary-planting-with-the-npm-cliThird Party Advisory
• https://github.com/npm/cli/security/advisories/GHSA-x8qc-rrcw-4r46Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z36UKPO5F3PQ3Q2POMF5LEKXWAH5RUFP/
• https://www.oracle.com/security-alerts/cpujan2020.htmlThird Party Advisory

Published

Dec 13, 2019

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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