VULNERABILITY INTELLIGENCE

CVE-2025-65025

CVSS score8.2 HIGH
EPSS probability0.57%
CISA KEVNot currently listed
Published2025-11-19
Last modified2026-10-18
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N

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.

Weakness classification

  • security-advisories@github.com: CWE-22

Primary references