CVE-2026-55697

High

Description

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.

SeverityHigh
CVSS7.5
Exploit probability9. percentile0.2%
ProductPnpm
PublishedJun 25, 2026
First seenJun 25, 2026

How to fix

Update
  • pnpm pnpm10.34.2, 11.5.3 or later
  • pnpm10.34.2, 11.5.3 or later

Affected products

ProductAffected versionsFixed in
pnpm pnpmv < 10.34.2, 11.0.0 ≤ v < 11.5.310.34.2, 11.5.3
pnpmnpmv < 10.34.2, 11.0.0 ≤ v < 11.5.310.34.2, 11.5.3

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