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CVE-2026-23890

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

Description (CNA)

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 (CNA)

Vendor / productVersions
pnpm / pnpmaffected < 10.28.1

CWE

CWE-23

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.