{
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    "cveMetadata": {
        "cveId": "CVE-2026-14540",
        "assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778",
        "state": "PUBLISHED",
        "assignerShortName": "Google",
        "dateReserved": "2026-07-03T03:28:09.464Z",
        "datePublished": "2026-07-31T01:46:54.942Z",
        "dateUpdated": "2026-07-31T16:12:49.663Z"
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                "shortName": "Google",
                "dateUpdated": "2026-07-31T01:46:54.942Z"
            },
            "title": "Server-Side Request Forgery via Unrestricted HTTP Redirection in MCP Toolbox",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-918",
                            "description": "CWE-918 (Server-Side Request Forgery (SSRF))",
                            "type": "CWE"
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            ],
            "impacts": [
                {
                    "capecId": "CAPEC-664",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-664 Server Side Request Forgery"
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                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "Google",
                    "product": "mcp-toolbox",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0.3.0",
                            "lessThanOrEqual": "1.4.0",
                            "versionType": "semver"
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                    "value": "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 (internal/sources/http/http.go) fails to safely regulate request redirection boundaries. Specifically, the client is initialized without a restrictive CheckRedirect policy hook and lacks target IP validation. An attacker or a malicious data-driven prompt can supply a crafted path parameter that triggers an open redirect or a direct destination swap on the target backend, coercing the mcp-toolbox into blindly following the redirection and making unauthorized requests to internal or arbitrary external endpoints.",
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                    ]
                }
            ],
            "references": [
                {
                    "url": "https://github.com/googleapis/mcp-toolbox/pull/3448"
                }
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                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "HIGH",
                        "subIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "exploitMaturity": "UNREPORTED",
                        "Safety": "NOT_DEFINED",
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "valueDensity": "NOT_DEFINED",
                        "vulnerabilityResponseEffort": "NOT_DEFINED",
                        "providerUrgency": "NOT_DEFINED",
                        "version": "4.0",
                        "baseSeverity": "HIGH",
                        "baseScore": 8,
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U"
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                    "value": "Syed Anas Mohiuddin",
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            "source": {
                "discovery": "UNKNOWN"
            },
            "x_generator": {
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            {
                "metrics": [
                    {
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                            "content": {
                                "timestamp": "2026-07-31T16:12:37.398569Z",
                                "id": "CVE-2026-14540",
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                                        "Exploitation": "none"
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