pnpm < 10.34.0 / 11.x < 11.4.0 Multiple Vulnerabilities

high Nessus Plugin ID 325223

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Synopsis

The pnpm package installed on the remote host is affected by multiple vulnerabilities.

Description

The version of pnpm installed on the remote host is prior to 10.34.0, or 11.x prior to 11.4.0. It is, therefore, affected by multiple vulnerabilities:

- pnpm allows a transitive dependency alias from registry package metadata to contain path traversal segments. During install, pnpm later uses that alias as a filesystem path when linking dependency nodes.
As a result, a registry package can cause pnpm install --ignore-scripts to replace paths in the current project with symlinks to attacker-controlled dependency package directories. (CVE-2026-50016)

- pnpm's patch application pipeline (@pnpm/patch-package) performs no path validation on file paths extracted from .patch files. An attacker who contributes a malicious patch file via a pull request can write attacker-controlled content to or delete arbitrary files on the filesystem during pnpm install, as the user running the install. (CVE-2026-50015)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to pnpm version 10.34.0, 11.4.0, or later.

Plugin Details

Severity: High

ID: 325223

File Name: pnpm_mult_vuln_10_34_0.nasl

Version: 1.2

Type: Local

Agent: windows, macosx, unix

Family: Misc.

Published: 7/6/2026

Updated: 7/7/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.03

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-50016

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:pnpm:pnpm

Required KB Items: Host/nodejs/modules/enumerated

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/28/2026

Vulnerability Publication Date: 5/28/2026

Reference Information

CVE: CVE-2026-50015, CVE-2026-50016

IAVA: 2026-A-0637

Detections

Analytics