Description
pnpm is a package manager. Prior to version 10.28.1, a path traversal vulnerability in pnpm's binary fetcher allows malicious packages to write files outside the intended extraction directory. The vulnerability has two attack vectors: (1) Malicious ZIP entries containing `../` or absolute paths that escape the extraction root via AdmZip's `extractAllTo`, and (2) The `BinaryResolution.prefix` field is concatenated into the extraction path without validation, allowing a crafted prefix like `../../evil` to redirect extracted files outside `targetDir`. The issue impacts all pnpm users who install packages with binary assets, users who configure custom Node.js binary locations and CI/CD pipelines that auto-install binary dependencies. It can lead to overwriting config files, scripts, or other sensitive files leading to RCE. Version 10.28.1 contains a patch.
INFO
Published Date :
2026-01-26T21:37:17.483Z
Last Modified :
2026-01-27T21:41:06.094Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2026-23888 vulnerability.
| Vendors | Products |
|---|---|
| Pnpm |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2026-23888.
