Path Traversal in Pnpm

CVE-2026-23888

pnpm is a package manager. Prior to version 10.28.1, a path traversal vulnerability in pnpm's binary fetcher allows malicious packages to write files outside the intended extraction directory. The vulnerability has two attack vectors: (1)…

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.004 (31.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

Affected products

  • Pnpm — versions < 10.28.1

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-23888?
CVE-2026-23888 is a medium-severity vulnerability in Pnpm, classified under Path Traversal. CVSS score: 6.5/10. Published 2026-01-26.
How severe is CVE-2026-23888?
Medium severity. CVSS v3 base score is 6.5 out of 10.