CVE-2026-55697CWE-494CWE-78CWE-829

pnpm: Repository-controlled configDependencies can select a pacquet native install engine

High · published June 25, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
8.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00191 · 8.3th percentile
Weaknesses
CWE-494 · Download of Code Without Integrity Check; CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection'); CWE-829 · Inclusion of Functionality from Untrusted Control Sphere
Published
2026-06-25T16:42Z
EPSS history
Timeline
  • 25 JUN 16:42Z
    pnpm: Repository-controlled configDependencies can select a pacquet native install engine
    cvelistv5