CVE-2026-14539

An allocation of resources without limits vulnerability in the HTTP handler component of Google mcp-toolbox versions up to and including 1.4.0 allows an unauthenticated attacker to cause a denial of service DoS. The /mcp endpoint handler reads incoming payloads directly into system memory using a...

GHSA-8FCC-W5HV-4GXV googleapis/mcp-toolbox: authentication bypass vulnerability in the generic opaque token validation path (validateOpaqueToken)

An authentication bypass vulnerability exists in the generic opaque token validation path validateOpaqueToken of googleapis/mcp-toolbox. When verifying an unparsed opaque token via an OAuth 2.0 introspection endpoint RFC 7662, the toolbox decodes the response into an introspectResp struct where t...

Google MCP Toolbox for Databases 安全漏洞

Google MCP Toolbox for Databases is an open-source Model Context Protocol MCP server developed by Google, Inc. There is a security vulnerability in Google MCP Toolbox for Databases. This vulnerability arises from the susceptibility to DNS redirection attacks when using SSE, and the hard-coded...