← AI agent vulnerabilities

CVE-2026-123809

Dynatrace MCP Server

4.2
Severity
Medium
Published
November 9, 2026
Last modified
November 9, 2026

Dynatrace MCP Server is an MCP server for Dynatrace Observability. Prior to 2.0.0, the create_workflow_for_notification tool inserts the caller-controlled teamName, problemType, and channel values into a Dynatrace workflow without neutralizing Jinja2 expressions. A caller can place template expressions such as event() in those values, and the workflow engine evaluates them when the persistent workflow runs. When the workflow has a valid Slack connector, the resulting Slack action can disclose event or tenant metadata to an attacker-selected channel; the shipped placeholder connection does not deliver messages by itself. The workflow remains in the tenant after the MCP session and credentials are gone. The isPrivate option defaults to false, making the created workflow tenant-visible unless the caller changes it. Exploitation requires either an MCP prompt-injection path or an operator approving a prompt that displays the template fragment literally. This issue is fixed in version 2.0.0.

CVSS vector CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N

Weakness

References

CVE-2026-123809 on NVD

Listed in

MediumMCP servers

More Dynatrace MCP Server CVEs

Nov 9
CVE-2026-1238123.7

The create_dynatrace_notebook registration in src/index.ts performs a persistent document-write action without calling requestHumanApproval, although the project's other write tools use that gate to obtain…

Nov 9
CVE-2026-1238117.5

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…

Nov 9
CVE-2026-1238104.3

Several read capabilities interpolate caller-controlled values into DQL without sufficient validation or escaping.