CVE-2026-23890

MEDIUM EPSS 35.0%
Published Jan 26, 20265mo ago · Modified Jun 17, 20261w ago
6.5 CVSS 3.1
Medium
Find Similar
Published Jan 26, 2026 5mo ago
Last Modified Jun 17, 2026 1w ago

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 Details

Base Score
6.5
Exploitability
2.8
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality None
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
35.0% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-23

Affected Products 1

VendorProductVersionRange
pnpmpnpm* <10.28.1

References 3

  • github.com https://github.com/pnpm/pnpm/commit/8afbb1598445d37985d91fda18abb4795ae5062d
    Patch
  • github.com https://github.com/pnpm/pnpm/releases/tag/v10.28.1
    Release Notes
  • github.com https://github.com/pnpm/pnpm/security/advisories/GHSA-xpqm-wm3m-f34h
    ExploitVendor Advisory

Remediation

  • github.com https://github.com/pnpm/pnpm/commit/8afbb1598445d37985d91fda18abb4795ae5062d
    Patch