Path Traversal in Pnpm
CVE-2026-24056
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (42.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.001
Affected products
- Pnpm — versions < 10.28.2
Weakness classification (CWE)
References
- github.com/pnpm/pnpm/security/advisories/GHSA-m733-5w8f-5ggw (Exploit, Vendor Advisory)
- github.com/pnpm/pnpm/commit/b277b45bc35ae77ca72d7634d144bbd58a48b70f (Patch)
- github.com/pnpm/pnpm/releases/tag/v10.28.2 (Release Notes)
Frequently asked questions
- What is CVE-2026-24056?
- CVE-2026-24056 is a medium-severity vulnerability in Pnpm, classified under Path Traversal. CVSS score: 6.5/10. Published 2026-01-26.
- How severe is CVE-2026-24056?
- Medium severity. CVSS v3 base score is 6.5 out of 10.