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CVE-2025-50180

High

Description

esm.sh is a no-build content delivery network (CDN) for web development. In version 136, esm.sh is vulnerable to a full-response SSRF, allowing an attacker to retrieve information from internal websites through the vulnerability. Version 137 fixes the vulnerability.

SeverityHigh
CVSS7.5
Exploit probability—
ProductEsm.sh
PublishedFeb 25, 2026
First seenFeb 25, 2026
Weakness typeCWE-918Server-side request forgery (SSRF)

How to fix

Update
  • esm esm.sh137 or later
  • github.com/esm-dev/esm.sh0.0.0-20250616164159-0593516c4cfa or later

Affected products

ProductAffected versionsFixed in
esm esm.shv < 137137
github.com/esm-dev/esm.shGov < 0.0.0-20250616164159-0593516c4cfa0.0.0-20250616164159-0593516c4cfa

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