CVE-2025-65025: esm.sh before 136 (exclusive), < 136

CVE-2025-65025. CVSS 3.1 base score 9.8 (CRITICAL, NVD). EPSS 0.00533 (percentile 0.43759), scored 17-Oct-2026.

Affected technology

esm.sh · before 136 (exclusive)
esm

esm.sh · < 136
esm-dev

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

Attack conditions (NVD, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

An attacker can craft a malicious NPM package containing specially crafted file paths (e.g., package/../../tmp/evil.js). Vendor/CNA’s CVSS 3.1 assessment (base score 8.2/10) rates confidentiality impact as low; integrity impact as high; availability impact as none. NVD’s CVSS 3.1 assessment (base score 9.8/10) rates confidentiality, integrity and availability impact as high.

Published 18-Oct-2026 20:24 UTC

CWE: CWE-22
CCR priority: 39.3 /100 (P4)
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 · NVD
EPSS: 0.00533 · percentile 0.43759 · 2026-10-17
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-18 20:23:06.032219+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2025-65025.html