microsoft/mcp · Security
Azure MCP Server has Server-Side Request Forgery issue that allows authorized attacker to elevate privileges over a network
- GHSA ID
- GHSA-hhfx-wfvq-7g9c
- CVE ID
- CVE-2026-26118
- Severity
- high
- Published
- Updated
- CVSS
- 8.8 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS v3
- 8.8 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
Server-Side Request Forgery (SSRF) in Azure MCP Server allows an authorized attacker to elevate privileges over a network.
CWEs
- CWE-918 · Server-Side Request Forgery (SSRF)
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-26118 ↗
- https://msrc.microsoft.com/update-guide/vulnerability/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 ↗
- https://github.com/advisories/GHSA-hhfx-wfvq-7g9c ↗