Platform
azure
Component
azure-mcp-server-tools
Fixed in
1.0.2
2.0.0-beta.17
CVE-2026-26118 describes a server-side request forgery (SSRF) vulnerability discovered in Azure MCP Server Tools. This flaw allows an authenticated attacker to potentially escalate privileges and gain unauthorized access to resources within a network. The vulnerability impacts versions 1.0.0 through 2.0.0-beta.17, and a fix is available in version 2.0.0-beta.17.
The SSRF vulnerability in Azure MCP Server Tools allows an attacker who has legitimate access to the system to craft malicious requests that appear to originate from the server itself. This can be exploited to access internal resources that are otherwise protected, such as cloud storage, databases, or other internal services. Successful exploitation could lead to data breaches, unauthorized modifications, or even complete compromise of the affected environment. The ability to elevate privileges significantly increases the potential impact, allowing an attacker to move laterally within the network and potentially gain control of other systems.
CVE-2026-26118 was publicly disclosed on 2026-03-10. The vulnerability's severity is rated HIGH with a CVSS score of 8.8. There are currently no publicly available proof-of-concept exploits. It is not listed on the CISA KEV catalog at the time of this writing. The potential for privilege escalation suggests that exploitation could be attractive to threat actors targeting Azure environments.
Exploit Status
EPSS
0.07% (22% percentile)
CISA SSVC
CVSS Vector
The primary mitigation for CVE-2026-26118 is to immediately upgrade Azure MCP Server Tools to version 2.0.0-beta.17 or later. If upgrading is not immediately feasible, consider implementing network segmentation to restrict the server's access to sensitive internal resources. Additionally, configure a Web Application Firewall (WAF) or proxy to filter outbound requests and block suspicious patterns indicative of SSRF attacks. Regularly review and audit network configurations to identify and address any potential vulnerabilities.
Update the Azure MCP Server Tools package to version 1.0.2 or higher, or to version 2.0.0-beta.17 or higher to mitigate the server-side request forgery (SSRF) vulnerability. This update fixes the issue by correctly validating incoming requests, preventing privilege escalation.
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CVE-2026-26118 is a server-side request forgery vulnerability affecting Azure MCP Server Tools versions 1.0.0–2.0.0-beta.17, allowing attackers to potentially elevate privileges over a network.
If you are using Azure MCP Server Tools versions 1.0.0 through 2.0.0-beta.17, you are potentially affected by this vulnerability. Check your version and upgrade accordingly.
Upgrade Azure MCP Server Tools to version 2.0.0-beta.17 or later to resolve the vulnerability. Consider network segmentation and WAF rules as interim mitigations.
As of the current date, there are no confirmed reports of active exploitation, but the potential for privilege escalation warrants immediate attention.
Refer to the official Microsoft security advisory for CVE-2026-26118 for detailed information and updates.
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