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Permalink CVE-2026-50021

6.8 MEDIUM

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

created 2 weeks, 6 days ago Activity log

Created suggestion 2 weeks, 6 days ago

pnpm: Integrity Check Bypass via Missing Lockfile Integrity Field

pnpm is a package manager. Prior to 10.34.0 and 11.4.0, pnpm's tarball extraction worker skips integrity verification when the integrity field is absent from the lockfile resolution. If an attacker can both modify pnpm-lock.yaml to remove the integrity: field and cause the referenced registry URL to serve altered package content, pnpm install --frozen-lockfile can install the altered package without an integrity error. npm's npm ci enforces integrity by default; pnpm's behavior of silently skipping verification is a pnpm-specific fail-open gap. This vulnerability is fixed in 10.34.0 and 11.4.0.

References

https://github.com/pnpm/pnpm/security/advisories/GHSA-q6j5-fjx5-2mc3 x_refsource_CONFIRM

Affected products

pnpm

==< 10.34.0
==>= 11.0.0, < 11.4.0

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