CVE-2026-59195
HIGH Exploitation: PoC
8.2
CVSS 3.1
Description
pnpm is a package manager. Prior to 10.34.4 and 11.8.0, pnpm accepts package names from the env lockfile configDependencies section and uses those names directly when creating config dependency symlinks under node_modules/.pnpm-config. A malicious repository can commit a crafted pnpm-lock.yaml whose env-lockfile document contains a traversal-shaped config dependency name. During pnpm install, pnpm installs the config dependency and creates a symlink at a path derived from that name. This vulnerability is fixed in 10.34.4 and 11.8.0.
Metadata
Severity & Metrics
8.2
HIGH CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:L
SSVC — CISA Coordinator
Affected products (1)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| pnpm | pnpm | — | < 10.34.4, >= 11.0.0, < 11.8.0 |
Weakness (CWE)
| CWE | Source | Description |
|---|---|---|
| CWE-22 | cna | CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') |
CVSS scores (1)
| Score | Severity | Version | Source | Vector |
|---|---|---|---|---|
| 8.2 | HIGH | 3.1 | cna | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:L |
References (1)
- https://github.com/pnpm/pnpm/security/advisories/GHSA-qrv3-253h-g69c https://github.com/pnpm/pnpm/security/advisories/GHSA-qrv3-253h-g69c