Directory Traversal Affecting pnpm package, versions <10.28.1-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-MINIMOSLATEST-PNPM-15147397
- published30 Jan 2026
- disclosed26 Jan 2026
Introduced: 26 Jan 2026
CVE-2026-23888 (opens in a new tab)How to fix?
Upgrade Minimos:latest pnpm to version 10.28.1-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream pnpm package and not the pnpm package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
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
- https://www.cve.org/CVERecord?id=CVE-2026-23888
- https://github.com/advisories/GHSA-6pfh-p556-v868
- https://osv.dev/vulnerability/MINI-ghq9-c9r5-p326
- https://osv.dev/vulnerability/CVE-2026-23888
- https://github.com/pnpm/pnpm/commit/5c382f0ca3b7cc49963b94677426e66539dcb3f5
- https://github.com/pnpm/pnpm/releases/tag/v10.28.1
- https://github.com/pnpm/pnpm/security/advisories/GHSA-6pfh-p556-v868