high8.8
CVE-2026-26118
Azure MCP Server has Server-Side Request Forgery issue that allows authorized attacker to elevate privileges over a network
Impact
Server-Side Request Forgery (SSRF) in Azure MCP Server allows an authorized attacker to elevate privileges over a network.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| nuget | Azure.Mcp | >= 2.0.0-beta.1, < 2.0.0-beta.17 | 2.0.0-beta.17 |
| npm | @azure/mcp | >= 2.0.0-beta.1, < 2.0.0-beta.17 | 2.0.0-beta.17 |
| pip | msmcp-azure | >= 2.0.0b14, < 2.0.0b17 | 2.0.0b17 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Azure Mcp Server | before 2.0.0 Version 2.0.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26118
- https://github.com/advisories/GHSA-hhfx-wfvq-7g9c
- https://nvd.nist.gov/vuln/detail/CVE-2026-26118
- https://github.com/microsoft/mcp/commit/804ff60293206c4d8e832f772097238561bf2c34
- https://github.com/microsoft/mcp/releases/tag/Azure.Mcp.Server-1.0.2
- https://github.com/microsoft/mcp/releases/tag/Azure.Mcp.Server-2.0.0-beta.17