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Permalink CVE-2026-55698

8.8 HIGH

CVSS version (CVSS): 3.1
Attack Vector (AV): Network (N)
Attack Complexity (AC): Low (L)
Privileges Required (PR): None (N)
User Interaction (UI): Required (R)
Scope (S): Unchanged (U)
Confidentiality (C): High (H)
Integrity (I): High (H)
Availability (A): High (H)
Modified Attack Vector (MAV): Network (N)
Modified Attack Complexity (MAC): Low (L)
Modified Privileges Required (MPR): None (N)
Modified User Interaction (MUI): Required (R)
Modified Confidentiality (MC): High (H)
Modified Scope (MS): Unchanged (U)
Modified Integrity (MI): High (H)
Modified Availability (MA): High (H)

created 2 weeks, 6 days ago Activity log

Created suggestion 2 weeks, 6 days ago

pnpm: Project env lockfile can short-circuit package-manager resolution and execute lockfile-selected pnpm bytes

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.

References

https://github.com/pnpm/pnpm/security/advisories/GHSA-w466-c33r-3gjp x_refsource_CONFIRM

Affected products

pnpm

==< 10.34.2
==>= 11.0.0, < 11.5.3

Matching in nixpkgs

pkgs.pnpm

Fast, disk space efficient package manager for JavaScript

nixos-unstable 11.5.2
- nixpkgs-unstable 11.1.2
- nixos-unstable-small 11.5.3
nixos-26.05 11.5.1
- nixos-26.05-small 11.5.2
- nixpkgs-26.05-darwin 11.5.1

pkgs.pnpm_8

Fast, disk space efficient package manager for JavaScript

nixos-unstable 8.15.9
- nixpkgs-unstable 8.15.9
- nixos-unstable-small 8.15.9
nixos-26.05 8.15.9
- nixos-26.05-small 8.15.9
- nixpkgs-26.05-darwin 8.15.9

pkgs.pnpm_9

Fast, disk space efficient package manager for JavaScript

nixos-unstable 9.15.9
- nixpkgs-unstable 9.15.9
- nixos-unstable-small 9.15.9
nixos-26.05 9.15.9
- nixos-26.05-small 9.15.9
- nixpkgs-26.05-darwin 9.15.9

pkgs.pnpm_10

Fast, disk space efficient package manager for JavaScript

nixos-unstable 10.34.0
- nixpkgs-unstable 10.33.4
- nixos-unstable-small 10.34.0
nixos-26.05 10.33.4
- nixos-26.05-small 10.33.4
- nixpkgs-26.05-darwin 10.33.4

pkgs.pnpm_11

Fast, disk space efficient package manager for JavaScript

nixos-unstable 11.5.2
- nixpkgs-unstable 11.1.2
- nixos-unstable-small 11.5.3
nixos-26.05 11.5.1
- nixos-26.05-small 11.5.2
- nixpkgs-26.05-darwin 11.5.1

pkgs.pnpm_10_29_2

Fast, disk space efficient package manager for JavaScript

nixos-unstable 10.29.2
- nixpkgs-unstable 10.29.2
- nixos-unstable-small 10.29.2
nixos-26.05 10.29.2
- nixos-26.05-small 10.29.2
- nixpkgs-26.05-darwin 10.29.2

pkgs.pnpmBuildHook

None

nixos-unstable -
- nixos-unstable-small

pkgs.pnpmConfigHook

None

nixos-unstable -
- nixpkgs-unstable
- nixos-unstable-small
nixos-26.05 -
- nixos-26.05-small
- nixpkgs-26.05-darwin

pkgs.pnpm-fixup-state-db

None

nixos-unstable 1.0.0
- nixpkgs-unstable 1.0.0
- nixos-unstable-small 1.0.0
nixos-26.05 1.0.0
- nixos-26.05-small 1.0.0
- nixpkgs-26.05-darwin 1.0.0

pkgs.pnpm-shell-completion

Complete your pnpm command fastly

nixos-unstable 0.5.5
- nixpkgs-unstable 0.5.5
- nixos-unstable-small 0.5.5
nixos-26.05 0.5.5
- nixos-26.05-small 0.5.5
- nixpkgs-26.05-darwin 0.5.5

Package maintainers

@gepbird Gutyina Gergő <gutyina.gergo.2@gmail.com>
@Scrumplex Sefa Eyeoglu <contact@scrumplex.net>
@donovanglover Donovan Glover