{"answers":{"affected":"1 open source package ship an affected version, including @dynatrace-oss/dynatrace-mcp-server.","exploited":"There is no known exploitation of CVE-2026-123811 in the wild and no public exploit code.","exposure":"","fix":"Upgrade @dynatrace-oss/dynatrace-mcp-server to 2.0.0 or later.","what":"CVE-2026-123811 is a high-severity vulnerability in dynatrace-oss dynatrace-mcp, published on 9 Nov 2026."},"fix_prompt":"Check this codebase for CVE-2026-123811 and fix it if it is affected.\n\nWhat it is: CVE-2026-123811 is a high-severity vulnerability in dynatrace-oss dynatrace-mcp, published on 9 Nov 2026. \nExploitation: There is no known exploitation of CVE-2026-123811 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- @dynatrace-oss/dynatrace-mcp-server (npm): affected all versions; fixed in 2.0.0\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-123811/ (Markdown: https://insights.sbomify.com/CVE-2026-123811/index.md)","id":"CVE-2026-123811","markdown":"https://insights.sbomify.com/CVE-2026-123811/index.md","name":"CVE-2026-123811","record":{"aliases":["GHSA-p7w7-4929-vpj5"],"analysis":null,"analysis_generated_by":null,"assigner":"GitHub_M","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:L","version":"3.1"},"cwes":[{"id":"CWE-306","name":"Missing Authentication for Critical Functionality"}],"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.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Dynatrace MCP Server: Unauthenticated HTTP MCP Tool Invocation in `@dynatrace-oss/dynatrace-mcp-server`","id":"CVE-2026-123811","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":null,"year":"2026"},"n_packages":1,"n_references":5,"next":{"headline":"Dynatrace MCP Server: create_dynatrace_notebook missing the human-approval gate","id":"CVE-2026-123812"},"nickname":null,"packages":[{"ecosystem":"npm","fixed":["2.0.0"],"introduced":["0"],"last_affected":[],"package":"@dynatrace-oss/dynatrace-mcp-server","purl":null,"source":"GHSA-p7w7-4929-vpj5"}],"prev":{"headline":"Dynatrace MCP Server: DQL injection via parameters not documented as DQL","id":"CVE-2026-123810"},"products":["dynatrace-mcp"],"published":"2026-11-09","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-11-09","vendors":["dynatrace-oss"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-123811/"}