CVE-2026-9739Published

Vulnerable to DNS rebinding attacks when using SSE (http://b/499408790). During the beta phase, we implemented `allowed-origins` and `allowed-hosts` flags to align with MCP security guidelines. However, the hardcoded `Access-Control-Allow-O…

Exact source revision recorded 23 Oct 2026 15:48:27 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2026-9739

Published

MCP Toolbox for Databases

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "Google",
                    "product": "MCP Toolbox for Databases",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0",
                            "lessThan": "PR 3054 (Fix CORS bypass)",
                            "versionType": "custom"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

Original source record · Cite this exact observation · Complete original publisher JSON