CVE-2026-50016

Description

pnpm is a package manager. Prior to 10.34.0 and 11.4.0, 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. This vulnerability is fixed in 10.34.0 and 11.4.0.

CVSS v3.1 Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0033

Probability of exploitation

0.25%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-23 CWE-23

Affected Products

Vendor	Product	Versions
pnpm	pnpm	< 10.34.0
pnpm	pnpm	11.0.0 — 11.4.0

References

Advisories & Patches

https://github.com/pnpm/pnpm/security/advisories/GHSA-hwx4-2j3j-g496 https://github.com/pnpm/pnpm/security/advisories/GHSA-hwx4-2j3j-g496

Exploits

https://github.com/pnpm/pnpm/security/advisories/GHSA-hwx4-2j3j-g496 https://github.com/pnpm/pnpm/security/advisories/GHSA-hwx4-2j3j-g496

Frequently Asked Questions

What is CVE-2026-50016? +

pnpm is a package manager. Prior to 10.34.0 and 11.4.0, 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. This vulnerability is fixed in 10.34.0 and 11.4.0. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-50016? +

CVE-2026-50016 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0033, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-50016? +

CVE-2026-50016 affects products from pnpm, specifically: pnpm. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-50016? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-34026

Wertheim SafeController Software, AssemblyVersion 6.15.8328.28014, contains a path traversal vulnerability in the documentName parameter of the /safe/selfservice/openselfservicedocument endpoint. The application …

CVE-2024-12019

The API used to interact with documents in the application contains a flaw that allows an authenticated attacker to read …

CVE-2025-27791

Collabora Online is a collaborative online office suite based on LibreOffice technology. In versions prior to 24.04.12.4, 23.05.19, and 22.05.25, …

CVE-2025-47788

Atheos is a self-hosted browser-based cloud IDE. Prior to v602, similar to GHSA-rgjm-6p59-537v/CVE-2025-22152, the `$target` parameter in `/controller.php` was not …

CVE-2024-2461

If exploited an attacker could traverse the file system to access files or directories that would otherwise be inaccessible

CVE-2025-59336

Luanox is a module host for Lua packages. Prior to 0.1.1, a file traversal vulnerability can cause potential denial of …