CVE-2026-24056

pnpm has symlink traversal in file:/git dependencies

State
Published
Severity
6.7 Medium
Published
Jan 26, 2026
Updated
Jan 27, 2026
Reserved
Jan 20, 2026

Read the record on cve.org

Description

pnpm is a package manager. Prior to version 10.28.2, when pnpm installs a `file:` (directory) or `git:` dependency, it follows symlinks and reads their target contents without constraining them to the package root. A malicious package containing a symlink to an absolute path (e.g., `/etc/passwd`, `~/.ssh/id_rsa`) causes pnpm to copy that file's contents into `node_modules`, leaking local data. The vulnerability only affects `file:` and `git:` dependencies. Registry packages (npm) have symlinks stripped during publish and are NOT affected. The issue impacts developers installing local/file dependencies andCI/CD pipelines installing git dependencies. It can lead to credential theft via symlinks to `~/.aws/credentials`, `~/.npmrc`, `~/.ssh/id_rsa`. Version 10.28.2 contains a patch.

Scores

CVSSScoreVectorSource
4.06.7 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:NGitHub_M

Weaknesses

  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  • CWE-59 Improper Link Resolution Before File Access ('Link Following')

Affected Products

ProductVersions
pnpmpnpm
  • < 10.28.2Affected

References

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