CVE-2026-123811

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-123811", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-11-06T15:27:56.226Z", "datePublished": "2026-11-09T21:01:42.490Z", "dateUpdated": "2026-11-13T14:13:56.947Z"}, "containers": {"cna": {"title": "Dynatrace MCP Server: Unauthenticated HTTP MCP Tool Invocation in `@dynatrace-oss/dynatrace-mcp-server`", "problemTypes": [{"descriptions": [{"cweId": "CWE-306", "lang": "en", "description": "CWE-306: Missing Authentication for Critical Function", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:L", "version": "3.1"}}], "references": [{"name": "https://github.com/dynatrace-oss/dynatrace-mcp/security/advisories/GHSA-p7w7-4929-vpj5", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/dynatrace-oss/dynatrace-mcp/security/advisories/GHSA-p7w7-4929-vpj5"}, {"name": "https://github.com/dynatrace-oss/dynatrace-mcp/commit/8f12972481e9165e8bd24d63b0a9e71976f85a43", "tags": ["x_refsource_MISC"], "url": "https://github.com/dynatrace-oss/dynatrace-mcp/commit/8f12972481e9165e8bd24d63b0a9e71976f85a43"}, {"name": "https://github.com/dynatrace-oss/dynatrace-mcp/commit/ac5251edfcf9511c6c662414da743383e7d1451c", "tags": ["x_refsource_MISC"], "url": "https://github.com/dynatrace-oss/dynatrace-mcp/commit/ac5251edfcf9511c6c662414da743383e7d1451c"}, {"name": "https://github.com/dynatrace-oss/dynatrace-mcp/commit/ead820322238633f5b289778c57faf5d3a8d73f9", "tags": ["x_refsource_MISC"], "url": "https://github.com/dynatrace-oss/dynatrace-mcp/commit/ead820322238633f5b289778c57faf5d3a8d73f9"}, {"name": "https://github.com/dynatrace-oss/dynatrace-mcp/releases/tag/v2.0.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/dynatrace-oss/dynatrace-mcp/releases/tag/v2.0.0"}], "affected": [{"vendor": "dynatrace-oss", "product": "dynatrace-mcp", "versions": [{"version": "< 2.0.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-11-09T21:01:42.490Z"}, "descriptions": [{"lang": "en", "value": "Dynatrace MCP Server is an MCP server for Dynatrace Observability. Prior to 2.0.0, a server started with the --http option accepts JSON-RPC tools/call requests without authentication, session validation, or Host and Origin protections before dispatching them under the server's configured Dynatrace credentials. A network-reachable caller can invoke execute_dql to read logs, security events, user sessions, and other Grail data, or invoke create_dynatrace_notebook to create tenant-visible notebooks. The send_event path is not affected because its requestHumanApproval gate blocks this attack path, and reset_grail_budget only demonstrates dispatch without accessing Dynatrace data. This issue is fixed in version 2.0.0."}], "source": {"advisory": "GHSA-p7w7-4929-vpj5", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/dynatrace-oss/dynatrace-mcp/security/advisories/GHSA-p7w7-4929-vpj5", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-11-13T14:13:30.185329Z", "id": "CVE-2026-123811", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-13T14:13:56.947Z"}}]}}

{}

{"affected": [{"affectedData": [{"product": "dynatrace-mcp", "vendor": "dynatrace-oss", "versions": [{"status": "affected", "version": "< 2.0.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Dynatrace MCP Server is an MCP server for Dynatrace Observability. Prior to 2.0.0, a server started with the --http option accepts JSON-RPC tools/call requests without authentication, session validation, or Host and Origin protections before dispatching them under the server's configured Dynatrace credentials. A network-reachable caller can invoke execute_dql to read logs, security events, user sessions, and other Grail data, or invoke create_dynatrace_notebook to create tenant-visible notebooks. The send_event path is not affected because its requestHumanApproval gate blocks this attack path, and reset_grail_budget only demonstrates dispatch without accessing Dynatrace data. This issue is fixed in version 2.0.0."}], "id": "CVE-2026-123811", "lastModified": "2026-11-13T14:17:49.463", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 5.3, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-123811", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-13T14:13:30.185329Z", "version": "2.0.3"}}]}, "published": "2026-11-09T22:18:37.287", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/dynatrace-oss/dynatrace-mcp/commit/8f12972481e9165e8bd24d63b0a9e71976f85a43"}, {"source": "security-advisories@github.com", "url": "https://github.com/dynatrace-oss/dynatrace-mcp/commit/ac5251edfcf9511c6c662414da743383e7d1451c"}, {"source": "security-advisories@github.com", "url": "https://github.com/dynatrace-oss/dynatrace-mcp/commit/ead820322238633f5b289778c57faf5d3a8d73f9"}, {"source": "security-advisories@github.com", "url": "https://github.com/dynatrace-oss/dynatrace-mcp/releases/tag/v2.0.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/dynatrace-oss/dynatrace-mcp/security/advisories/GHSA-p7w7-4929-vpj5"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/dynatrace-oss/dynatrace-mcp/security/advisories/GHSA-p7w7-4929-vpj5"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-306"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.0.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "dynatrace-mcp", "source": "cna", "vendor": "dynatrace-oss"}, "product": "dynatrace-mcp", "vendor": "dynatrace-oss"}], "created": "2026-11-09T22:45:08.395270+00:00", "updated": "2026-11-10T09:29:41.572762+00:00", "vendors": ["dynatrace-oss", "dynatrace-oss$PRODUCT$dynatrace-mcp"]}