8.2
/ 10
HIGH
CVSS: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.
Basic Information
ID
CVE-2025-65025
Source
GitHub_M
Published
Nov 19, 2025 at 17:32
Affected Product
Vendor
esm-dev
Product
esm.sh
Version
< 136
Affected Versions
esm-dev esm.sh < 136