CVE-2026-23890

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.

• CWE-23

• https://github.com/pnpm/pnpm/commit/8afbb1598445d37985d91fda18abb4795ae5062dPatch
• https://github.com/pnpm/pnpm/releases/tag/v10.28.1Release Notes
• https://github.com/pnpm/pnpm/security/advisories/GHSA-xpqm-wm3m-f34hExploit, Vendor Advisory

Published

Jan 26, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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