What is CVE-2026-55700?

CVE-2026-55700 is a high-severity vulnerability in Pnpm, classified under Path Traversal. CVSS score: 7.1/10. Published 2026-06-25.

How severe is CVE-2026-55700?

High severity. CVSS v3 base score is 7.1 out of 10.

Path Traversal in Pnpm

CVE-2026-55700

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 ano…

Vulnerability class: Path Traversal (Directory Traversal)

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L.

Affected products

Pnpm — versions >= 11.3.0, < 11.5.3

Weakness classification (CWE)

CWE-22 — Path Traversal
CWE-73 — External Control of File Name or Path

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-55700?: CVE-2026-55700 is a high-severity vulnerability in Pnpm, classified under Path Traversal. CVSS score: 7.1/10. Published 2026-06-25.
How severe is CVE-2026-55700?: High severity. CVSS v3 base score is 7.1 out of 10.