Skip to content
OpenAdvisories
Medium · 5.0 CVE-2026-82040 EUVD-2026-91792GHSA-w93c-mfp3-35p4

UTMStack < 11.2.16 SSRF via IdentityProviderService

Published Oct 2, 2026 · Updated Oct 5, 2026 · Assigned by VulnCheck

Description

UTMStack before 11.2.16 contains a server-side request forgery vulnerability in IdentityProviderService.validateMetadataUrl() that allows authenticated attackers to make the server send requests to arbitrary internal or cloud metadata hosts by supplying a malicious metadata URL to the identity-providers endpoint. Attackers can exploit the POST/PUT /api/identity-providers endpoint with no validation of target host, IP, or scheme to perform internal network port scanning and access cloud instance-metadata services.

Affected products

VendorProductAffectedFixed
UTMStack UTMStack < 11.2.16 11.2.16

References