CVE-2026-50016

HIGH

pnpm: Transitive dependency alias path traversal allows project path override via symlink replacement

Title source: cna
STIX 2.1

Description

pnpm is a package manager. Prior to 10.34.0 and 11.4.0, pnpm allows a transitive dependency alias from registry package metadata to contain path traversal segments. During install, pnpm later uses that alias as a filesystem path when linking dependency nodes. As a result, a registry package can cause `pnpm install --ignore-scripts` to replace paths in the current project with symlinks to attacker-controlled dependency package directories. This vulnerability is fixed in 10.34.0 and 11.4.0.

References (1)

Core 1
Core References

Scores

CVSS v3 8.8
EPSS 0.0033
EPSS Percentile 24.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-23
Status published
Products (5)
npm/pnpm 0 - 10.34.0npm
npm/pnpm 11.0.0 - 11.4.0npm
pnpm/pnpm < 10.34.0
pnpm/pnpm < 10.33.4
pnpm/pnpm >= 11.0.0, < 11.4.0
Published Jun 25, 2026
Tracked Since Jun 25, 2026