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.
References
| Link | Resource |
|---|---|
| https://github.com/esm-dev/esm.sh/commit/9d77b88c320733ff6689d938d85d246a3af9af16 | Patch |
| https://github.com/esm-dev/esm.sh/security/advisories/GHSA-h3mw-4f23-gwpw | Exploit Vendor Advisory |
| https://github.com/esm-dev/esm.sh/security/advisories/GHSA-h3mw-4f23-gwpw | Exploit Vendor Advisory |
Configurations
History
15 Jan 2026, 17:52
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Esm
Esm esm.sh |
|
| CPE | cpe:2.3:a:esm:esm.sh:*:*:*:*:*:*:*:* | |
| References | () https://github.com/esm-dev/esm.sh/commit/9d77b88c320733ff6689d938d85d246a3af9af16 - Patch | |
| References | () https://github.com/esm-dev/esm.sh/security/advisories/GHSA-h3mw-4f23-gwpw - Exploit, Vendor Advisory |
20 Nov 2025, 15:17
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/esm-dev/esm.sh/security/advisories/GHSA-h3mw-4f23-gwpw - |
19 Nov 2025, 18:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-11-19 18:15
Updated : 2026-01-15 17:52
NVD link : CVE-2025-65025
Mitre link : CVE-2025-65025
CVE.ORG link : CVE-2025-65025
JSON object : View
Products Affected
esm
- esm.sh
CWE
CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')