Azure MCP Server Tools Elevation of Privilege Vulnerability
Priority MEDIUM 42CWE-918Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Privilege escalation
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from Microsoft.
Summary
Server-side request forgery (ssrf) in Azure MCP Server allows an authorized attacker to elevate privileges over a network.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01062 64th percentileScored 2026-11-07
Fix Fixed Azure MCP Server Tools 1.0.0 (npm) (Microsoft): 1.0.2Azure MCP Server Tools 1.0.0 (NuGet) (Microsoft): 1.0.2+6 more products
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Microsoft | Azure MCP Server Tools 1.0.0 (npm) | 1.0.0 to before 1.0.2 | 1.0.2 | Patch available | CNA |
| Microsoft | Azure MCP Server Tools 1.0.0 (NuGet) | 1.0.0 to before 1.0.2 | 1.0.2 | Patch available | CNA |
| Microsoft | Azure MCP Server Tools 2.0.0 (npm) | 2.0.0-beta.1 to before 2.0.0-beta.17 | 2.0.0-beta.17 | Patch available | CNA |
| Microsoft | Azure MCP Server Tools 2.0.0 (NuGet) | 2.0.0-beta.1 to before 2.0.0-beta.17 | 2.0.0-beta.17 | Patch available | CNA |
| Microsoft | Azure MCP Server Tools 2.0.0 (PyPi) | 2.0.0-beta.1 to before 2.0.0-beta.17 | 2.0.0-beta.17 | Patch available | CNA |
| — | Azure.Mcp (NuGet) | 2.0.0-beta.1 to before 2.0.0-beta.17 | 2.0.0-beta.17 | Patch available | GHSA-hhfx-wfvq-7g9c |
| — | Azure.Mcp (NuGet) | 1.0.0 to before 1.0.2 | 1.0.2 | Patch available | GHSA-hhfx-wfvq-7g9c |
| — | @azure/mcp (npm) | 2.0.0-beta.1 to before 2.0.0-beta.17 | 2.0.0-beta.17 | Patch available | GHSA-hhfx-wfvq-7g9c |
| — | msmcp-azure (PyPI) | 2.0.0b14 to before 2.0.0b17 | 2.0.0b17 | Patch available | GHSA-hhfx-wfvq-7g9c |
| — | @azure/mcp (npm) | 1.0.0 to before 1.0.2 | 1.0.2 | Patch available | GHSA-hhfx-wfvq-7g9c |
- Azure MCP Server Tools 1.0.0 (npm) VendorMicrosoft Affected 1.0.0 to before 1.0.2 Fixed in 1.0.2 Patch available CNA
- Azure MCP Server Tools 1.0.0 (NuGet) VendorMicrosoft Affected 1.0.0 to before 1.0.2 Fixed in 1.0.2 Patch available CNA
- Azure MCP Server Tools 2.0.0 (npm) VendorMicrosoft Affected 2.0.0-beta.1 to before 2.0.0-beta.17 Fixed in 2.0.0-beta.17 Patch available CNA
- Azure MCP Server Tools 2.0.0 (NuGet) VendorMicrosoft Affected 2.0.0-beta.1 to before 2.0.0-beta.17 Fixed in 2.0.0-beta.17 Patch available CNA
- Azure MCP Server Tools 2.0.0 (PyPi) VendorMicrosoft Affected 2.0.0-beta.1 to before 2.0.0-beta.17 Fixed in 2.0.0-beta.17 Patch available CNA
- Azure.Mcp (NuGet) Vendor— Affected 2.0.0-beta.1 to before 2.0.0-beta.17 Fixed in 2.0.0-beta.17 Patch available GHSA-hhfx-wfvq-7g9c
- Azure.Mcp (NuGet) Vendor— Affected 1.0.0 to before 1.0.2 Fixed in 1.0.2 Patch available GHSA-hhfx-wfvq-7g9c
- @azure/mcp (npm) Vendor— Affected 2.0.0-beta.1 to before 2.0.0-beta.17 Fixed in 2.0.0-beta.17 Patch available GHSA-hhfx-wfvq-7g9c
- msmcp-azure (PyPI) Vendor— Affected 2.0.0b14 to before 2.0.0b17 Fixed in 2.0.0b17 Patch available GHSA-hhfx-wfvq-7g9c
- @azure/mcp (npm) Vendor— Affected 1.0.0 to before 1.0.2 Fixed in 1.0.2 Patch available GHSA-hhfx-wfvq-7g9c
CPE configurations NVD · 17
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:azure_mcp_server:*:*:*:*:*:*:*:* | before 2.0.0 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta1:*:*:*:*:*:* | 2.0.0 beta1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta10:*:*:*:*:*:* | 2.0.0 beta10 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta11:*:*:*:*:*:* | 2.0.0 beta11 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta12:*:*:*:*:*:* | 2.0.0 beta12 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta13:*:*:*:*:*:* | 2.0.0 beta13 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta14:*:*:*:*:*:* | 2.0.0 beta14 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta15:*:*:*:*:*:* | 2.0.0 beta15 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta16:*:*:*:*:*:* | 2.0.0 beta16 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta2:*:*:*:*:*:* | 2.0.0 beta2 | Vulnerable | Microsoft |
- cpe:2.3:a:microsoft:azure_mcp_server:*:*:*:*:*:*:*:* Versions before 2.0.0 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta1:*:*:*:*:*:* Versions 2.0.0 beta1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta10:*:*:*:*:*:* Versions 2.0.0 beta10 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta11:*:*:*:*:*:* Versions 2.0.0 beta11 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta12:*:*:*:*:*:* Versions 2.0.0 beta12 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta13:*:*:*:*:*:* Versions 2.0.0 beta13 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta14:*:*:*:*:*:* Versions 2.0.0 beta14 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta15:*:*:*:*:*:* Versions 2.0.0 beta15 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta16:*:*:*:*:*:* Versions 2.0.0 beta16 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta2:*:*:*:*:*:* Versions 2.0.0 beta2 Vulnerable ·Microsoft
Show 7 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta3:*:*:*:*:*:* | 2.0.0 beta3 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta4:*:*:*:*:*:* | 2.0.0 beta4 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta5:*:*:*:*:*:* | 2.0.0 beta5 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta6:*:*:*:*:*:* | 2.0.0 beta6 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta7:*:*:*:*:*:* | 2.0.0 beta7 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta8:*:*:*:*:*:* | 2.0.0 beta8 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta9:*:*:*:*:*:* | 2.0.0 beta9 | Vulnerable | Microsoft |
- cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta3:*:*:*:*:*:* Versions 2.0.0 beta3 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta4:*:*:*:*:*:* Versions 2.0.0 beta4 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta5:*:*:*:*:*:* Versions 2.0.0 beta5 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta6:*:*:*:*:*:* Versions 2.0.0 beta6 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta7:*:*:*:*:*:* Versions 2.0.0 beta7 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta8:*:*:*:*:*:* Versions 2.0.0 beta8 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:azure_mcp_server:2.0.0:beta9:*:*:*:*:*:* Versions 2.0.0 beta9 Vulnerable ·Microsoft
Remediation
- Fix · CNA Azure MCP Server Tools 1.0.0 (npm) (Microsoft) Fixed in 1.0.2
- Fix · CNA Azure MCP Server Tools 1.0.0 (NuGet) (Microsoft) Fixed in 1.0.2
- Fix · CNA Azure MCP Server Tools 2.0.0 (npm) (Microsoft) Fixed in 2.0.0-beta.17
- Fix · CNA Azure MCP Server Tools 2.0.0 (NuGet) (Microsoft) Fixed in 2.0.0-beta.17
- Fix · CNA Azure MCP Server Tools 2.0.0 (PyPi) (Microsoft) Fixed in 2.0.0-beta.17
- Fix · GHSA-hhfx-wfvq-7g9c Azure.Mcp (NuGet) Fixed in 2.0.0-beta.17 Advisory →
- Fix · GHSA-hhfx-wfvq-7g9c Azure.Mcp (NuGet) Fixed in 1.0.2 Advisory →
- Fix · GHSA-hhfx-wfvq-7g9c @azure/mcp (npm) Fixed in 2.0.0-beta.17 Advisory →
- Fix · GHSA-hhfx-wfvq-7g9c msmcp-azure (PyPI) Fixed in 2.0.0b17 Advisory →
- Fix · GHSA-hhfx-wfvq-7g9c @azure/mcp (npm) Fixed in 1.0.2 Advisory →
Vendor assessments
Microsoft
Microsoft's page for this CVE →
- Impact
- Elevation of Privilege
- Exploited
- No
- Publicly disclosed
- No
- Exploitability
- Exploitation Less Likely
| Product | Status | Plan or fix |
|---|---|---|
| Azure MCP Server Tools 1.0.0 (NuGet) | Fixed | 1.0.2 · Security Update |
| Azure MCP Server Tools 1.0.0 (npm) | Fixed | 1.0.2 · Security Update |
| Azure MCP Server Tools 2.0.0 (NuGet) | Fixed | 2.0.0-beta.17 · Security Update |
| Azure MCP Server Tools 2.0.0 (PyPi) | Fixed | 2.0.0-beta.17 · Security Update |
| Azure MCP Server Tools 2.0.0 (npm) | Fixed | 2.0.0-beta.17 · Security Update |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-26118
- 2026-10-03 Alias added: GHSA-hhfx-wfvq-7g9c
References
Sources
- CVE-2026-26118 · CVE Program
- CVE-2026-26118 · NVD
- FIRST EPSS
- GHSA-hhfx-wfvq-7g9c · GitHub Advisory Database · CC BY 4.0
- CVE-2026-26118 · Microsoft Security Update Guide
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences