CVE-2026-23890

MEDIUM

6.5

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.

CVE Details

CVSS v3.1 Score6.5

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published1/26/2026

Last Modified1/28/2026

Sourcenvd

Honeypot Sightings0

Affected Products

pnpm:pnpm

Weaknesses (CWE)

CWE-23

References

https://github.com/pnpm/pnpm/commit/8afbb1598445d37985d91fda18abb4795ae5062d(security-advisories@github.com)

https://github.com/pnpm/pnpm/releases/tag/v10.28.1(security-advisories@github.com)

https://github.com/pnpm/pnpm/security/advisories/GHSA-xpqm-wm3m-f34h(security-advisories@github.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.