PT-2026-52525 · Pnpm · Pnpm

Published 2026-06-25 · Updated 2026-06-25 · CVE-2026-55700

NVD

CVSS v3.1

7.1

High

Base vector

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

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.

Fix

Path traversal

Weakness Enumeration

CWE-22

CWE-73

Related Identifiers

CVE-2026-55700

Affected Products

Pnpm

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-55700 · Security Note
• https://github.com/pnpm/pnpm/pull/12303 · Note
• https://github.com/pnpm/pnpm/security/advisories/GHSA-v23m-ccfg-pq9h · Note