CVE-2019-16776
npm symlink reference outside of node_modules
7.7
HIGH
CVSS 3.1
EPSS 1.2%
Description
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.
How to fix CVE-2019-16776
To remediate CVE-2019-16776, upgrade the affected package to a fixed version below.
- —upgrade to 6.13.4+ds-2 or later
- —upgrade to 6.13.3 or later
Is CVE-2019-16776 being exploited?
Low — EPSS is 1.2%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 6.13.4+ds-2
- from 0, < 6.13.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.7 | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N |