CVE-2025-65025

Name: CVE-2025-65025
Creator: NVD / NIST
Published: 2025-11-19T18:15:49.84+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.50%

Last modified Jun 17, 2026

CVE-2025-65025 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 0.50% chance of exploitation in the next 30 days.

Description

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 containing specially crafted file paths (e.g., package/../../tmp/evil.js). When esm.sh downloads and extracts this package, files may be written to arbitrary locations on the server, escaping the intended extraction directory. This issue has been patched in version 136.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

0.50%

38.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Esm	Esm.Sh	< 136

References

https://github.com/esm-dev/esm.sh/commit/9d77b88c320733ff6689d938d85d246a3af9af16Patch
https://github.com/esm-dev/esm.sh/security/advisories/GHSA-h3mw-4f23-gwpwExploit, Vendor Advisory
https://github.com/esm-dev/esm.sh/security/advisories/GHSA-h3mw-4f23-gwpwExploit, Vendor Advisory

Timeline

Published: Nov 19, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-65025?

How severe is CVE-2025-65025?

CVE-2025-65025 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.50% probability of exploitation in the next 30 days.

How do I fix CVE-2025-65025?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-65025?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST