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CVE-2026-54149

Full vulnerability record from the local CVENow database.

Description

MaxKB is an open-source AI assistant for enterprise. Prior to 2.10.0-lts, MaxKB tool import functionality in apps/tools/serializers/tool.py and MCP referencing mode in apps/application/chat_pipeline/step/chat_step/impl/base_chat_step.py do not consistently validate MCP transport type, allowing an authenticated user to import a .tool file containing stdio transport with malicious commands and trigger the configuration through an AI Chat node so MultiServerMCPClient executes arbitrary system commands. This issue is fixed in version 2.10.0-lts.

Severity
HIGH
CVSS score
8.8 (v3.1)
Vulnerability status
Deferred
Source identifier
Published
2026-07-10 16:16:32.587000
Last modified
2026-10-25 15:10:00.147000
View original CVE JSON
{
  "id": "CVE-2026-54149",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-10T16:16:32.587",
  "lastModified": "2026-10-25T15:10:00.147",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "MaxKB is an open-source AI assistant for enterprise. Prior to 2.10.0-lts, MaxKB tool import functionality in apps/tools/serializers/tool.py and MCP referencing mode in apps/application/chat_pipeline/step/chat_step/impl/base_chat_step.py do not consistently validate MCP transport type, allowing an authenticated user to import a .tool file containing stdio transport with malicious commands and trigger the configuration through an AI Chat node so MultiServerMCPClient executes arbitrary system commands. This issue is fixed in version 2.10.0-lts."
    },
    {
      "lang": "es",
      "value": "MaxKB es un asistente de IA de código abierto para empresas. Antes de 2.10.0-lts, la funcionalidad de importación de herramientas de MaxKB en apps/tools/serializers/tool.py y el modo de referencia de MCP en apps/application/chat_pipeline/step/chat_step/impl/base_chat_step.py no validan consistentemente el tipo de transporte MCP, permitiendo a un usuario autenticado importar un archivo .tool que contiene transporte stdio con comandos maliciosos y activar la configuración a través de un nodo de chat de IA de modo que MultiServerMCPClient ejecute comandos de sistema arbitrarios. Este problema está corregido en la versión 2.10.0-lts."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "1Panel-dev",
          "product": "MaxKB",
          "versions": [
            {
              "version": "< 2.10.0-lts",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-10T16:01:03.903578Z",
          "id": "CVE-2026-54149",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/1Panel-dev/MaxKB/releases/tag/v2.10.0-lts",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-4pr3-9xhm-98x5",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-4pr3-9xhm-98x5",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}