CVE-2026-23890
pnpm scoped bin name Path Traversal allows arbitrary file creation outside node_modules/.bin
MEDIUM 6.5EPSS 0.5%
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.
- Affected
- pnpm
- CVSS v3.1 GITHUB
- 6.5 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N - EPSS
- 0.51% chance of exploitation in the next 30 days, 42nd percentile
- Published
- 2026-01-26
- Updated
- 2026-01-27
Proof-of-concept exploits (1)
Security advisories
- pnpm/pnpm/security/advisories/GHSA-xpqm-wm3m-f34h
- pnpm/pnpm/commit/8afbb1598445d37985d91fda18abb4795ae5062d