Server-Side Request Forgery in Azure Custom Locations RP Enables Privilege Escalation

Publication date: 2026-04-03

Last updated on: 2026-04-06

Assigner: Microsoft Corporation

Description

Server-side request forgery (ssrf) in Azure Custom Locations Resource Provider (RP) allows an authorized attacker to elevate privileges over a network.

CVSS Scores

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Meta Information

Published

2026-04-03

Last Modified

2026-04-06

Generated

2026-07-06

AI Q&A

2026-04-03

EPSS Evaluated

2026-07-05

NVD

CVE-2026-26135

EUVD

EUVD-2026-18556

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	azure_custom_locations_resource_provider	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-918	The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

Attack-Flow Graph

Executive Summary

This vulnerability is a server-side request forgery (SSRF) issue found in the Azure Custom Locations Resource Provider (RP). It allows an authorized attacker to send crafted requests from the server side, potentially manipulating internal network resources.

Impact Analysis

The vulnerability can lead to an elevation of privileges over a network, meaning an attacker with some authorization could gain higher access rights than intended, potentially compromising sensitive data or systems.

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