CVE-2026-123812

Full vulnerability record from the local CVENow database.

Description

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

LOW

CVSS score

3.7 (v3.1)

Vulnerability status

Received

Source identifier

[email protected]

Published

2026-11-09 22:18:37.437000

Last modified

2026-11-09 22:18:37.437000

View original CVE JSON

{
  "id": "CVE-2026-123812",
  "sourceIdentifier": "[email protected]",
  "published": "2026-11-09T22:18:37.437",
  "lastModified": "2026-11-09T22:18:37.437",
  "vulnStatus": "Received",
  "cveTags": [],
  "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'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."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "dynatrace-oss",
          "product": "dynatrace-mcp",
          "versions": [
            {
              "version": "< 1.8.7",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "baseScore": 3.7,
          "baseSeverity": "LOW",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 1.4
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/dynatrace-oss/dynatrace-mcp/commit/2851d3ce29d834c93b67f0db903c10e0b488e7ac",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/dynatrace-oss/dynatrace-mcp/releases/tag/v1.8.7",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/dynatrace-oss/dynatrace-mcp/security/advisories/GHSA-pc2w-4mq8-32qw",
      "source": "[email protected]"
    }
  ]
}