CVE-2026-14537 Authorization Bypass in MCP Toolbox Legacy HTTP Endpoints

Incorrect Authorization in the direct HTTP API tool invocation endpoint in Google mcp-toolbox versions v1.3.0 and v1.4.0 allows an unauthenticated attacker to invoke tools protected by the scopeRequired feature via sending tool invocation requests through legacy HTTP endpoints when the --enable-a...

EUVD-2026-51371

Incorrect Authorization in the direct HTTP API tool invocation endpoint in Google mcp-toolbox versions v1.3.0 and v1.4.0 allows an unauthenticated attacker to invoke tools protected by the scopeRequired feature via sending tool invocation requests through legacy HTTP endpoints when the --enable-a...

CVE-2026-14537 Authorization Bypass in MCP Toolbox Legacy HTTP Endpoints

Incorrect Authorization in the direct HTTP API tool invocation endpoint in Google mcp-toolbox versions v1.3.0 and v1.4.0 allows an unauthenticated attacker to invoke tools protected by the scopeRequired feature via sending tool invocation requests through legacy HTTP endpoints when the --enable-a...

CVE-2026-14537

Incorrect Authorization in the direct HTTP API tool invocation endpoint in Google mcp-toolbox versions v1.3.0 and v1.4.0 allows an unauthenticated attacker to invoke tools protected by the scopeRequired feature via sending tool invocation requests through legacy HTTP endpoints when the --enable-a...

CVE-2026-14537 Authorization Bypass in MCP Toolbox Legacy HTTP Endpoints

Incorrect Authorization in the direct HTTP API tool invocation endpoint in Google mcp-toolbox versions v1.3.0 and v1.4.0 allows an unauthenticated attacker to invoke tools protected by the scopeRequired feature via sending tool invocation requests through legacy HTTP endpoints when the --enable-a...

SUSE CVE-2026-9739

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-Origin: header in the SSE initialization handler was inadvertentl...

SUSE CVE-2026-11717

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...

SUSE CVE-2026-11719

An authenticated authorization bypass vulnerability exists in MCP Toolbox for Databases due to missing scope enforcement across older protocol handlers. While the 2025-11-25 protocol version handler correctly enforces per-tool restrictions defined by scopesRequired, older supported protocol...

PT-2026-66667

Name of the Vulnerable Software and Affected Versions Google mcp-toolbox version 1.4.0 Description An authentication bypass and audience confusion issue exists in the Google OAuth provider component. When a Google authService is initialized with mcpEnabled: true but lacks an explicitly defined...

CVE-2026-14538: Improper Authorization

An improper authorization and security-boundary bypass vulnerability in the bigquery-execute-sql tool component of Google mcp-toolbox versions 0.16.1 through 1.4.0 allows an authenticated attacker to bypass allowedDatasets validation checks. The toolbox relies on the BigQuery dry-run API to enfor...

PT-2026-66663

Name of the Vulnerable Software and Affected Versions Google mcp-toolbox versions 1.3.0 through 1.4.0 Description Incorrect authorization in the direct HTTP API tool invocation endpoint allows an unauthenticated attacker to invoke tools protected by the scopeRequired feature. This occurs when too...

CVE-2026-14540: Server-Side Request Forgery (SSRF)

A Server-Side Request Forgery SSRF vulnerability exists in the generic HTTP source and tool components of Google mcp-toolbox versions 0.3.0 through 1.4.0. While the toolbox implements baseline input sanitization for user-controlled parameters, the underlying HTTP client...

CVE-2026-14539: Allocation of Resources Without Limits or Throttling

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...

CVE-2026-14537: Incorrect Authorization

Incorrect Authorization in the direct HTTP API tool invocation endpoint in Google mcp-toolbox versions v1.3.0 and v1.4.0 allows an unauthenticated attacker to invoke tools protected by the scopeRequired feature via sending tool invocation requests through legacy HTTP endpoints when the --enable-a...

CVE-2026-14541: Improper Authentication

An authentication bypass and audience confusion vulnerability exists in the Google OAuth provider component of Google mcp-toolbox version 1.4.0. When a Google authService is initialized with mcpEnabled: true but lacks an explicitly defined audience or clientId, the ValidateMCPAuth pipeline for...

PT-2026-66666

Name of the Vulnerable Software and Affected Versions Google mcp-toolbox versions 0.3.0 through 1.4.0 Description A Server-Side Request Forgery SSRF issue exists in the generic HTTP source and tool components. The HTTP client in internal/sources/http/http.go does not safely regulate request...

azure-arm-nb-extensions (>=0.0.1, <=0.0.2), cfn-docgen (>=0.0.1, <=0.1.4) +1 more potentially affected by CVE-2026-13346 via pip (20.2.3)

pip PYPI version 20.2.3 is affected by a known vulnerability. The following packages have a transitive dependency on pip and may be impacted: - azure-arm-nb-extensions =0.0.1, =0.0.1, =0.0.8, =0.0.11 Source cves: CVE-2026-13346 Source advisory: OSV:GHSA-QWM4-QH6W-59XR...

EUVD-2026-49407

A Server-Side Request Forgery SSRF and credential exfiltration vulnerability exists in the cloud-healthcare-fhir-fetch-page tool of googleapis/mcp-toolbox. The tool takes an unvalidated pageURL parameter from the client and issues an HTTP GET request to it using an authenticated client. The...

CVE-2026-16481

A Server-Side Request Forgery SSRF and credential exfiltration vulnerability exists in the cloud-healthcare-fhir-fetch-page tool of googleapis/mcp-toolbox. The tool takes an unvalidated pageURL parameter from the client and issues an HTTP GET request to it using an authenticated client. The...

CVE-2026-16481: Server-Side Request Forgery (SSRF)

A Server-Side Request Forgery SSRF and credential exfiltration vulnerability exists in the cloud-healthcare-fhir-fetch-page tool of googleapis/mcp-toolbox. The tool takes an unvalidated pageURL parameter from the client and issues an HTTP GET request to it using an authenticated client. The...