NetSight
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high7.7

CVE-2019-16776

npm symlink reference outside of node_modules

Impact

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.

Affected packages

EcosystemPackageAffectedFixed in
npmnpm< 6.13.36.13.3

Affected products

VendorProductAffected versions
NpmjsNpm
before 6.13.3
OpensuseLeap
Version 15.1
OracleGraalvm
Version 19.3.0.2
FedoraprojectFedora
Version 31
RedhatEnterprise Linux
Version 8.0
RedhatEnterprise Linux Eus
Version 8.1

Weakness classification

CWE-22

References