CVE-2026-55697

HighCVSS 8.8/10Last modified Jun 30, 2026

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.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-78 CWE-494 CWE-829

Affected software

Vendor	Product	Versions
pnpm	pnpm	< 10.34.2; >= 11.0.0, < 11.5.3

References

https://github.com/pnpm/pnpm/security/advisories/GHSA-gj8w-mvpf-x27xExploit, Vendor Advisory
https://github.com/pnpm/pnpm/security/advisories/GHSA-gj8w-mvpf-x27xExploit, Vendor Advisory

Timeline

Published: Jun 25, 2026
Last modified: Jun 30, 2026
NVD status: Analyzed

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