CVE-2026-23890 pnpm scoped bin name Path Traversal allows arbitrary file creation outside node_modules/.bin

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 nodemodules/.bin. Bin names starting with @ bypass validation, and after scope normalization, path traversal...

pnpm scoped bin name Path Traversal allows arbitrary file creation outside node_modules/.bin

Summary A path traversal vulnerability in pnpm's bin linking allows malicious npm packages to create executable shims or symlinks outside of nodemodules/.bin. Bin names starting with @ bypass validation, and after scope normalization, path traversal sequences like ../../ remain intact. Details Th...