CVE-2026-55699: Pnpm

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

pnpm is a package manager. Prior to 10.34.2 and 11.5.3, Manifest bin object keys such as "", ".", and ".." passed pnpm's bin-name guard. When a malicious package was installed globally, later global remove, update, or add-replacement flows could re-derive those names from the installed manifest and pass path.join(globalBinDir, binName) to removeBin. For "." this targets the global bin directory; for ".." this targets its parent. This vulnerability is fixed in 10.34.2 and 11.5.3.

Affected products

• Pnpm Pnpm: before 10.34.2 (fixed in 10.34.2); from 11.0.0, before 11.5.3 (fixed in 11.5.3)

Published 2026-06-25. Last modified 2026-06-29.