CVE-2026-59196 PUBLISHED

pnpm: hoisted install imports lockfile alias outside node_modules

Assigner: GitHub_M
Reserved: 02.07.2026 Published: 06.07.2026 Updated: 06.07.2026

pnpm is a package manager. Prior to 10.34.4 and 11.7.0, a crafted lockfile alias could be joined directly under a hoisted node_modules directory. Traversal aliases could escape that directory, while reserved aliases such as .bin or .pnpm could overwrite pnpm-owned layout. This vulnerability is fixed in 10.34.4 and 11.7.0.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L
CVSS Score: 7.1

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	None	Integrity Impact	High
User Interaction	Required	Availability Impact	Low

CVSS 3.1

Product Status

Vendor	pnpm
Product	pnpm
Versions	Version < 10.34.4 is affected Version >= 11.0.0, < 11.7.0 is affected

References

https://github.com/pnpm/pnpm/security/advisories/GHSA-fr4h-3cph-29xv

Problem Types

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') CWE
CWE-73: External Control of File Name or Path CWE