{"affected":[{"product":"dynatrace-mcp","source":"CNA: GitHub_M","vendor":"dynatrace-oss","versions":[{"status":"affected","version":"< 2.0.0"}]},{"defaultStatus":"unaffected","ecosystem":"npm","packageName":"@dynatrace-oss/dynatrace-mcp-server","product":"@dynatrace-oss/dynatrace-mcp-server","source":"OSV GHSA-p7w7-4929-vpj5","vendor":"","versions":[{"events":[{"introduced":"0"},{"fixed":"2.0.0"}],"lessThan":"2.0.0","status":"affected","version":"0","versionType":"semver"}]}],"cveId":"CVE-2026-123811","cwes":["CWE-306"],"description":"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.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":7.5,"severity":"high","source":"CNA: GitHub_M","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:L","version":"3.1"}],"modifiedAt":1794258904157,"publishedAt":1794258102490,"references":[{"source":"CNA: GitHub_M","tags":["x_refsource_CONFIRM"],"url":"https://github.com/dynatrace-oss/dynatrace-mcp/security/advisories/GHSA-p7w7-4929-vpj5"},{"source":"CNA: GitHub_M","tags":["x_refsource_MISC"],"url":"https://github.com/dynatrace-oss/dynatrace-mcp/commit/8f12972481e9165e8bd24d63b0a9e71976f85a43"},{"source":"CNA: GitHub_M","tags":["x_refsource_MISC"],"url":"https://github.com/dynatrace-oss/dynatrace-mcp/commit/ac5251edfcf9511c6c662414da743383e7d1451c"},{"source":"CNA: GitHub_M","tags":["x_refsource_MISC"],"url":"https://github.com/dynatrace-oss/dynatrace-mcp/commit/ead820322238633f5b289778c57faf5d3a8d73f9"},{"source":"CNA: GitHub_M","tags":["x_refsource_MISC"],"url":"https://github.com/dynatrace-oss/dynatrace-mcp/releases/tag/v2.0.0"},{"source":"OSV / GitHub Security Advisories","tags":["advisory"],"url":"https://github.com/advisories/GHSA-p7w7-4929-vpj5"},{"source":"OSV / GitHub Security Advisories","tags":["osv"],"url":"https://osv.dev/vulnerability/GHSA-p7w7-4929-vpj5"}],"remediation":[{"kind":"fix","source":"OSV GHSA-p7w7-4929-vpj5","text":"@dynatrace-oss/dynatrace-mcp-server (npm): OSV reports a fixed version 2.0.0. Check the advisory for supported release branches.","url":"https://github.com/advisories/GHSA-p7w7-4929-vpj5"}],"revision":"f9ce439189d160b0b882b585af7646c3ad8d01b6d420c3a55c70ab6ccdc8720e","sources":[{"modifiedAt":1794258102490,"name":"CNA: GitHub_M","retrievedAt":1794262153944,"url":"https://www.cve.org/CVERecord?id=CVE-2026-123811"},{"modifiedAt":1794258904157,"name":"OSV / GitHub Security Advisories","retrievedAt":1794262155002,"url":"https://osv.dev/vulnerability/GHSA-p7w7-4929-vpj5"}],"ssvc":null,"status":"published","title":"Dynatrace MCP Server: Unauthenticated HTTP MCP Tool Invocation in `@dynatrace-oss/dynatrace-mcp-server`","updatedAt":1794262155002}