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Vulnerability record · CVE-2019-16777 · published 13 December 2019

CVE-2019-16777: Npmjs npm path traversal vulnerability

Npmjs · Npm

Versions of the npm CLI prior to 6.13.4 are vulnerable to an Arbitrary File Overwrite. It fails to prevent existing globally-installed binaries to be overwritten by other package installations. For example, if a package was installed globally and created a serve binary, any subsequent installs of packages that also create a serve binary would overwrite the previous serve binary. This behavior is still allowed in local installations and also through install scripts. This vulnerability bypasses a user using the --ignore-scripts install option.

6.5 CVSS 3.1 Medium EPSS 2.1% · top 18.7% CWE-22 · Path traversalCWE-269 · Improper privilege management
6.5CVSS 3.1 base score, v2 5.5
2.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
22References
17 Jun 2026Last modified by NVD

Description

Versions of the npm CLI prior to 6.13.4 are vulnerable to an Arbitrary File Overwrite. It fails to prevent existing globally-installed binaries to be overwritten by other package installations. For example, if a package was installed globally and created a serve binary, any subsequent installs of packages that also create a serve binary would overwrite the previous serve binary. This behavior is still allowed in local installations and also through install scripts. This vulnerability bypasses a user using the --ignore-scripts install option.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Affected products

6 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00027.html Mailing ListThird Party Advisory
https://access.redhat.com/errata/RHEA-2020:0330 Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0573 Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0579 Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0597 Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0602 Third Party Advisory
https://blog.npmjs.org/post/189618601100/binary-planting-with-the-npm-cli Third Party Advisory
https://github.com/npm/cli/security/advisories/GHSA-4328-8hgf-7wjr Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z36UKPO5F3PQ3Q2POMF5LEK
https://security.gentoo.org/glsa/202003-48 Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2020.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00027.html Mailing ListThird Party Advisory
https://access.redhat.com/errata/RHEA-2020:0330 Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0573 Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0579 Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0597 Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0602 Third Party Advisory
https://blog.npmjs.org/post/189618601100/binary-planting-with-the-npm-cli Third Party Advisory
https://github.com/npm/cli/security/advisories/GHSA-4328-8hgf-7wjr Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z36UKPO5F3PQ3Q2POMF5LEK
https://security.gentoo.org/glsa/202003-48 Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2020.html Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2019-16777), CISA KEV, FIRST EPSS (scores of 2026-10-03). This page is refreshed as NVD updates the record.