pnpm up to 10.34.3/11.7.x Config Dependency pnpm-lock.yaml symlink

Summaryinfo

A vulnerability labeled as critical has been found in pnpm up to 10.34.3/11.7.x. The affected element is an unknown function of the file pnpm-lock.yaml of the component Config Dependency Handler. The manipulation results in symlink. This vulnerability is known as CVE-2026-59195. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability classified as critical has been found in pnpm up to 10.34.3/11.7.x. Affected is an unknown part of the file pnpm-lock.yaml of the component Config Dependency Handler. The manipulation with an unknown input leads to a symlink vulnerability. CWE is classifying the issue as CWE-61. The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-59195 since 07/02/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

Upgrading to version 10.34.4 or 11.8.0 eliminates this vulnerability.

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Productinfo

Name

• pnpm

Version

• 10.34.0
• 10.34.1
• 10.34.2
• 10.34.3
• 11.0
• 11.1
• 11.2
• 11.3
• 11.4
• 11.5
• 11.6
• 11.7

Website

• Product: https://github.com/pnpm/pnpm/

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