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Untriaged

Permalink CVE-2026-55700

7.1 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): None (N)
Integrity (I): High (H)
Availability (A): Low (L)
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): None (N)
Modified Scope (MS): Unchanged (U)
Modified Integrity (MI): High (H)
Modified Availability (MA): Low (L)

created 2 weeks, 6 days ago Activity log

Created suggestion 2 weeks, 6 days ago

pnpm: stage download writes outside destination via manifest version traversal

pnpm is a package manager. From 11.3.0 until 11.5.3, `pnpm stage download` derived a local filename from registry-controlled package name and version fields. A crafted manifest could escape the selected download directory and overwrite another reachable file. The merged fix validates both fields, derives one safe filename, and verifies the final destination before writing. This vulnerability is fixed in 11.5.3.

References

https://github.com/pnpm/pnpm/security/advisories/GHSA-v23m-ccfg-pq9h x_refsource_CONFIRM
https://github.com/pnpm/pnpm/pull/12303 x_refsource_MISC

Affected products

pnpm

==>= 11.3.0, < 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