CVE 8.2 HIGH

esm.sh CDN service has arbitrary file write via tarslip_CVE-2025-65025

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

CWE Classification

References

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