CVE-2026-55697: Pnpm

High severity, CVSS 8.8. EPSS: 0.2% chance of exploitation in the next 30 days.

pnpm is a package manager. Prior to 10.34.2 and 11.5.3, pnpm can install configDependencies declared in pnpm-workspace.yaml before command dispatch. Before the patch, a repository could declare pacquet or @pnpm/pacquet as a config dependency and pnpm treated that repository-controlled dependency as an install-engine opt-in. During install, pnpm resolved a platform-specific @pacquet/<platform>-<arch>/pacquet binary from node_modules/.pnpm-config/<packageName> and spawned it as the developer or CI user. 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 2026-06-30.