CVE-2026-79671 - CERT CVE
ID CVE-2026-79671
Sažetak 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.
Reference
CVSS
Base: 5.5
Impact: 2.7
Exploitability:2.3
Pristup
VektorSloženostAutentikacija
NETWORK LOW HIGH
Impact
PovjerljivostCjelovitostDostupnost
LOW LOW NONE
CVSS vektor CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
Zadnje važnije ažuriranje 31-08-2026 - 20:50
Objavljeno 25-08-2026 - 12:16