What is CVE-2025-65025?

CVE-2025-65025 is a high-severity vulnerability in Esm-dev Esm.sh, classified under Path Traversal. CVSS score: 8.2/10. Published 2025-11-19.

How severe is CVE-2025-65025?

High severity. CVSS v3 base score is 8.2 out of 10.

Path Traversal in Esm-dev Esm.sh

CVE-2025-65025

esm.sh is a nobuild content delivery network(CDN) for modern web development. Prior to version 136, the esm.sh CDN service is vulnerable to path traversal during NPM package tarball extraction. An attacker can craft a malicious NPM package…

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.001 (21.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N.

Affected products

Esm-dev Esm.sh — versions < 136

Weakness classification (CWE)

CWE-22 — Path Traversal

References

https://github.com/esm-dev/esm.sh/security/advisories/GHSA-h3mw-4f23-gwpw (x_refsource_CONFIRM)
https://github.com/esm-dev/esm.sh/commit/9d77b88c320733ff6689d938d85d246a3af9af16 (x_refsource_MISC)

Frequently asked questions

What is CVE-2025-65025?: CVE-2025-65025 is a high-severity vulnerability in Esm-dev Esm.sh, classified under Path Traversal. CVSS score: 8.2/10. Published 2025-11-19.
How severe is CVE-2025-65025?: High severity. CVSS v3 base score is 8.2 out of 10.