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Description

pnpm is a package manager. Prior to version 10.28.1, a path traversal vulnerability in pnpm's bin linking allows malicious npm packages to create executable shims or symlinks outside of `node_modules/.bin`. Bin names starting with `@` bypass validation, and after scope normalization, path traversal sequences like `../../` remain intact. This issue affects all pnpm users who install npm packages and CI/CD pipelines using pnpm. It can lead to overwriting config files, scripts, or other sensitive files. Version 10.28.1 contains a patch.

PUBLISHED Reserved 2026-01-16 | Published 2026-01-26 | Updated 2026-01-27 | Assigner GitHub_M




MEDIUM: 6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Problem types

CWE-23: Relative Path Traversal

Product status

< 10.28.1
affected

References

github.com/pnpm/pnpm/security/advisories/GHSA-xpqm-wm3m-f34h

github.com/...ommit/8afbb1598445d37985d91fda18abb4795ae5062d

github.com/pnpm/pnpm/releases/tag/v10.28.1

cve.org (CVE-2026-23890)

nvd.nist.gov (CVE-2026-23890)

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