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.
References
| Link | Resource |
|---|---|
| https://github.com/pnpm/pnpm/commit/5c382f0ca3b7cc49963b94677426e66539dcb3f5 | Patch |
| https://github.com/pnpm/pnpm/releases/tag/v10.28.1 | Release Notes |
| https://github.com/pnpm/pnpm/security/advisories/GHSA-6pfh-p556-v868 | Exploit Vendor Advisory |
Configurations
History
28 Jan 2026, 17:47
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/pnpm/pnpm/commit/5c382f0ca3b7cc49963b94677426e66539dcb3f5 - Patch | |
| References | () https://github.com/pnpm/pnpm/releases/tag/v10.28.1 - Release Notes | |
| References | () https://github.com/pnpm/pnpm/security/advisories/GHSA-6pfh-p556-v868 - Exploit, Vendor Advisory | |
| CPE | cpe:2.3:a:pnpm:pnpm:*:*:*:*:*:node.js:*:* | |
| First Time |
Pnpm pnpm
Pnpm |
26 Jan 2026, 22:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-01-26 22:15
Updated : 2026-01-28 17:47
NVD link : CVE-2026-23888
Mitre link : CVE-2026-23888
CVE.ORG link : CVE-2026-23888
JSON object : View
Products Affected
pnpm
- pnpm