Microsoft Entra Provisioning Service SSRF Privilege Escalation

Publication date: 2026-07-02

Last updated on: 2026-07-02

Assigner: Microsoft Corporation

Description

Server-side request forgery (ssrf) in Microsoft Entra Provisioning Service (SyncFabric) allows an authorized attacker to elevate privileges over a network.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-07-02

Last Modified

2026-07-02

Generated

2026-07-03

AI Q&A

2026-07-03

EPSS Evaluated

N/A

NVD

CVE-2026-57100

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	entra_provisioning_service	*

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 in the Microsoft Entra Provisioning Service (SyncFabric). It allows an authorized attacker to send crafted requests from the server to internal or external systems, potentially enabling them to elevate their privileges over a network.

Impact Analysis

The impact of this vulnerability is severe, as indicated by its high CVSS score of 9.9. An attacker with authorized access could exploit this SSRF vulnerability to gain elevated privileges, which may lead to full compromise of the affected system, including unauthorized access to sensitive data, disruption of services, and further network penetration.

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