CVE-2026-26118
Azure MCP Server Tools Elevation of Privilege Vulnerability
Description
Server-side request forgery (ssrf) in Azure MCP Server allows an authorized attacker to elevate privileges over a network.
INFO
Published Date :
March 10, 2026, 6:18 p.m.
Last Modified :
March 13, 2026, 8:12 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-26118
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Apply vendor patches for Azure MCP Server.
- Restrict network access for the server.
- Validate all user inputs carefully.
Public PoC/Exploit Available at Github
CVE-2026-26118 has a 5 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-26118.
| URL | Resource |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26118 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-26118 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-26118
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Open-source catalog of 200+ attack vectors targeting AI agents, MCP servers, and LLM-powered applications. Machine-readable (JSON/YAML) with OWASP mappings.
agent-security ai-security llm-security mcp-security owasp prompt-injection security-research threat-catalog
Python Makefile
None
Shell JavaScript HTML Python HCL Dockerfile Go Go Template Rust TypeScript
Sentinel detection lab for MCP attack chains: CVE-2026-26118 SSRF token theft, tool poisoning, cross-server exfiltration, identity post-exploitation. Maps to OWASP Agentic Top 10. 5 analytics rules, 7 hunting queries, workbook. Companion to nineliveszerotrust.com.
PowerShell
MCP server security scanner — tests against clause-compliance vulnerabilities (arxiv 2603.10163), CVE-2026-26118, and common MCP security gaps
TypeScript
📡 PoC auto collect from GitHub. ⚠️ Be careful Malware.
security cve exploit poc vulnerability
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-26118 vulnerability anywhere in the article.
-
The Hacker News
Microsoft Patches 84 Flaws in March Patch Tuesday, Including Two Public Zero-Days
Microsoft on Tuesday released patches for a set of 84 new security vulnerabilities affecting various software components, including two that have been listed as publicly known. Of these, eight are rat ... Read more
-
The Cyber Express
Microsoft Patch Tuesday March 2026: Two Zero-Days and Critical RCE Bugs Fixed
The Microsoft Patch Tuesday March 2026 release introduces security updates addressing 79 vulnerabilities, including two publicly disclosed zero-day vulnerabilities and several high-risk issues tied to ... Read more
-
TheCyberThrone
Microsoft Patch Tuesday – March 2026
Released: March 10, 2026Executive SummaryMicrosoft’s March 2026 Patch Tuesday addresses 83 vulnerabilities across Windows, Microsoft Office, SQL Server, Azure cloud services, and .NET — with 8 rated C ... Read more
The following table lists the changes that have been made to the
CVE-2026-26118 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Mar. 13, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:microsoft:azure_mcp_server:*:*:*:*:*:*:*:* versions up to (excluding) 2.0.0 *cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta1:*:*:*:*:*:* *cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta10:*:*:*:*:*:* *cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta11:*:*:*:*:*:* *cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta12:*:*:*:*:*:* *cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta13:*:*:*:*:*:* *cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta14:*:*:*:*:*:* *cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta15:*:*:*:*:*:* *cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta16:*:*:*:*:*:* *cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta2:*:*:*:*:*:* *cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta3:*:*:*:*:*:* *cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta4:*:*:*:*:*:* *cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta5:*:*:*:*:*:* *cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta6:*:*:*:*:*:* *cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta7:*:*:*:*:*:* *cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta8:*:*:*:*:*:* *cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta9:*:*:*:*:*:* Added Reference Type Microsoft Corporation: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26118 Types: Vendor Advisory -
New CVE Received by [email protected]
Mar. 10, 2026
Action Type Old Value New Value Added Description Server-side request forgery (ssrf) in Azure MCP Server allows an authorized attacker to elevate privileges over a network. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-918 Added Reference https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26118