CVE-2026-123812 (GCVE-0-2026-123812)

Vulnerability from cvelistv5 – Published: 2026-11-09 21:02 – Updated: 2026-11-09 21:02
VLAI
Title
Dynatrace MCP Server: create_dynatrace_notebook missing the human-approval gate
Summary
Dynatrace MCP Server is an MCP server for Dynatrace Observability. Prior to 1.8.7, 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 operator consent. A caller can create tenant-visible notebooks containing attacker-controlled Markdown or DQL content, and tenant users may later execute embedded DQL when opening the notebook. The tool also lacks a destructiveHint annotation that would signal its side effects to MCP clients. This issue is fixed in version 1.8.7.
Severity
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
CWE
Assigner
GitHub_M CNA
References
Impacted products
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "dynatrace-mcp",
          "vendor": "dynatrace-oss",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.8.7"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Dynatrace MCP Server is an MCP server for Dynatrace Observability. Prior to 1.8.7, the create_dynatrace_notebook registration in src/index.ts performs a persistent document-write action without calling requestHumanApproval, although the project\u0027s other write tools use that gate to obtain operator consent. A caller can create tenant-visible notebooks containing attacker-controlled Markdown or DQL content, and tenant users may later execute embedded DQL when opening the notebook. The tool also lacks a destructiveHint annotation that would signal its side effects to MCP clients. This issue is fixed in version 1.8.7."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-862",
              "description": "CWE-862: Missing Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-09T21:02:43.516Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/dynatrace-oss/dynatrace-mcp/security/advisories/GHSA-pc2w-4mq8-32qw",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/dynatrace-oss/dynatrace-mcp/security/advisories/GHSA-pc2w-4mq8-32qw"
        },
        {
          "name": "https://github.com/dynatrace-oss/dynatrace-mcp/commit/2851d3ce29d834c93b67f0db903c10e0b488e7ac",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/dynatrace-oss/dynatrace-mcp/commit/2851d3ce29d834c93b67f0db903c10e0b488e7ac"
        },
        {
          "name": "https://github.com/dynatrace-oss/dynatrace-mcp/releases/tag/v1.8.7",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/dynatrace-oss/dynatrace-mcp/releases/tag/v1.8.7"
        }
      ],
      "source": {
        "advisory": "GHSA-pc2w-4mq8-32qw",
        "discovery": "UNKNOWN"
      },
      "title": "Dynatrace MCP Server: create_dynatrace_notebook missing the human-approval gate"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-123812",
    "datePublished": "2026-11-09T21:02:43.516Z",
    "dateReserved": "2026-11-06T15:27:56.226Z",
    "dateUpdated": "2026-11-09T21:02:43.516Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}



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