GitHub Advisoryadvisory · npm

GHSA-x8qc-rrcw-4r46 npm symlink reference outside of node_modules

HIGH Published 2019-12-13 Modified 2022-08-10 Official page ↗
Aliases
CVE-2019-16776
Ecosystem
npm
Packages
npm
Severity
High
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
Weaknesses
CWE-22
Reviewed
2020-06-16

Affected packages

• npm npm: < 6.13.3 → fixed in 6.13.3

Description

Versions of the npm CLI prior to 6.13.3 are vulnerable to a symlink reference outside of node_modules. It is possible for packages to create symlinks to files outside of the`node_modules` folder through the `bin` field upon installation. A properly constructed entry in the package.json bin field would allow a package publisher to create a symlink pointing to arbitrary files on a user’s system when the package is installed. Only files accessible by the user running the `npm install` are affected. This behavior is still possible through install scripts. This vulnerability bypasses a user using the --ignore-scripts install option. Recommendation Upgrade to version 6.13.3 or later.

Related

Alias · CVE (1)

  • CVE-2019-16776 Versions of the npm CLI prior to 6.13.3 are vulnerable to an Arbitrary File Write. vulnerability

Weakness · CWE (1)

  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory weakness

References