Cloudanix VulnDB

CVE-2026-79671

Medium · 5.5

CVSS

5.5

EPSS

—

Published

Aug 25, 2026

CISA due date

—

The record

Ech0 before 4.4.3 contains a server-side request forgery vulnerability in the validateWebhookURL function (webhook_setting_service.go), which only validates literal IP addresses via net.ParseIP() and fails to reject hostnames that DNS-resolve to private or internal IPs (e.g., 169.254.169.254.nip.io). An attacker with admin privileges can create a webhook with such a hostname to bypass validation and cause the server to make requests to internal services, cloud metadata endpoints, and private network resources. The issue is fixed in 4.4.3.

Affected packages

Ecosystem Package Introduced Fixed

Related vulnerabilities