npm symlink reference outside of node_modules

CAO 8.1CVE-2019-16776 · GHSA-x8qc-rrcw-4r46 · Công bố 13/12/2019 · cập nhật 17/06/2026

Tóm tắt nhanh

CVE-2019-16776 là lỗ hổng mức CAO (CVSS 8.1) ảnh hưởng npm (npmjs), graalvm (oracle), npm.
Xác suất bị khai thác trong 30 ngày tới (EPSS): 3.4%, cao hơn 88.9% các lỗ hổng khác.
Cách xử lý: cập nhật lên 6.13.3 hoặc mới hơn.

Gói / sản phẩm	Phiên bản bị ảnh hưởng	Phiên bản đã vá
npm npmjs	`< 6.13.3`	`6.13.3`
graalvm oracle	`= 19.3.0.2`	Chưa có bản vá
npm npm	`< 6.13.3`	`6.13.3`

Mô tả

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 thenode_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.

Mô tả của NVD

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.