CVE-2025-59341: Esm-Dev Esm.sh

High severity, CVSS 7.7. EPSS: 1.6% chance of exploitation in the next 30 days.

esm.sh is a nobuild content delivery network(CDN) for modern web development. In 136 and earlier, a Local File Inclusion (LFI) issue was identified in the esm.sh service URL handling. An attacker could craft a request that causes the server to read and return files from the host filesystem (or other unintended file sources).

Affected products

• Esm-Dev Esm.sh: up to and including 136

Published 2025-09-17. Last modified 2026-06-17.