VulnerabilityAnalyzed

CVE-2026-23890

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`.

MEDIUM 6.5EPSS 0.46%

Does this matter?

Lower severity and a low EPSS score (0.46%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.1: 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
EPSS: 0.46% probability · 38th percentile
CISA KEV: Not listed
Weakness: CWE-23
Affected: pnpm/pnpm
Source: security-advisories@github.com

References

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

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.