CVE-2026-26118
Server-Side Request Forgery in Azure MCP Server Enables Privilege Escalation
Publication date: 2026-03-10
Last updated on: 2026-03-13
Assigner: Microsoft Corporation
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| microsoft | azure_mcp_server | to 2.0.0 (exc) |
| microsoft | azure_mcp_server | 2.0.0 |
| microsoft | azure_mcp_server | 2.0.0 |
| microsoft | azure_mcp_server | 2.0.0 |
| microsoft | azure_mcp_server | 2.0.0 |
| microsoft | azure_mcp_server | 2.0.0 |
| microsoft | azure_mcp_server | 2.0.0 |
| microsoft | azure_mcp_server | 2.0.0 |
| microsoft | azure_mcp_server | 2.0.0 |
| microsoft | azure_mcp_server | 2.0.0 |
| microsoft | azure_mcp_server | 2.0.0 |
| microsoft | azure_mcp_server | 2.0.0 |
| microsoft | azure_mcp_server | 2.0.0 |
| microsoft | azure_mcp_server | 2.0.0 |
| microsoft | azure_mcp_server | 2.0.0 |
| microsoft | azure_mcp_server | 2.0.0 |
| microsoft | azure_mcp_server | 2.0.0 |
Helpful Resources
Exploitability
| 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
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a server-side request forgery (SSRF) issue in the Azure MCP Server. It allows an authorized attacker to send crafted requests from the server, potentially accessing or manipulating internal resources that are not directly accessible to the attacker.
Through this SSRF vulnerability, the attacker can elevate their privileges over the network, gaining higher access rights than originally permitted.
How can this vulnerability impact me? :
This vulnerability can have a significant impact by allowing an attacker with some level of authorization to escalate their privileges within the network. This means the attacker could gain unauthorized access to sensitive data, perform unauthorized actions, or disrupt services.
The CVSS base score of 8.8 indicates a high severity, with high impact on confidentiality, integrity, and availability.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know