CVE WatchJun 30, 2026

CVE-2026-55698

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 pn

CVSS

8.8

High

EPSS

0.2%

KEV

—

Exploit Today

0-100

Published: Jun 25, 2026 · Last modified: Jun 30, 2026 · CWE-345 · CWE-494 · CWE-829

EPSS · 30d

0.2%EPSS · 30 days0.2%

2026-06-302026-07-17

Technical description

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.

Official references

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