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Untriaged
Permalink CVE-2026-23889
6.5 MEDIUM
  • CVSS version: 3.1
  • Attack vector (AV): NETWORK
  • Attack complexity (AC): LOW
  • Privileges required (PR): NONE
  • User interaction (UI): REQUIRED
  • Scope (S): UNCHANGED
  • Confidentiality impact (C): NONE
  • Integrity impact (I): HIGH
  • Availability impact (A): NONE
created 2 months, 3 weeks ago
pnpm has Windows-specific tarball Path Traversal

pnpm is a package manager. Prior to version 10.28.1, a path traversal vulnerability in pnpm's tarball extraction allows malicious packages to write files outside the package directory on Windows. The path normalization only checks for `./` but not `.\`. On Windows, backslashes are directory separators, enabling path traversal. This vulnerability is Windows-only. This issue impacts Windows pnpm users and Windows CI/CD pipelines (GitHub Actions Windows runners, Azure DevOps). It can lead to overwriting `.npmrc`, build configs, or other files. Version 10.28.1 contains a patch.

Affected products

pnpm
  • ==< 10.28.1

Matching in nixpkgs

pkgs.pnpm_8

Fast, disk space efficient package manager for JavaScript

pkgs.pnpm_9

Fast, disk space efficient package manager for JavaScript

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