Insufficient Verification of Data Authenticity Affecting pnpm package, versions <11.5.3-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.3% (22nd percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-PNPM-17770511
  • published2 Jul 2026
  • disclosed25 Jun 2026

Introduced: 25 Jun 2026

CVE-2026-55698  (opens in a new tab)
CWE-345  (opens in a new tab)
CWE-494  (opens in a new tab)
CWE-829  (opens in a new tab)

How to fix?

Upgrade Minimos:latest pnpm to version 11.5.3-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream pnpm package and not the pnpm package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

pnpm is a package manager. Prior to 10.34.2 and 11.5.3, pnpm can persist package-manager bootstrap metadata in the first YAML document of pnpm-lock.yaml. Before the patch, direct pnpm execution trusted an already resolved packageManagerDependencies entry when the committed env lockfile contained matching pnpm and @pnpm/exe versions. A malicious repository could therefore commit package-manager lockfile package records and snapshots that bypassed fresh package-manager resolution, then cause pnpm to install and execute bytes selected by that committed lockfile state during automatic version switching. This vulnerability is fixed in 10.34.2 and 11.5.3.