CVE-2026-49291

{
  "id": "CVE-2026-49291",
  "sourceIdentifier": "[email protected]",
  "published": "2026-06-19T19:16:36.170",
  "lastModified": "2026-10-25T23:10:00.167",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "mcp-memory-service is a semantic memory layer for AI applications. Prior to version 10.65.3, the HTTP MCP JSON-RPC endpoint at `/mcp` requires only OAuth `read` scope for all requests, then dispatches `tools/call` directly to handlers that include mutating tools. A read-only OAuth client can call `store_memory` and `delete_memory` through MCP even though the corresponding REST endpoints require `write` scope. Version 10.65.3 patches the issue."
    },
    {
      "lang": "es",
      "value": "mcp-memory-service es una capa de memoria semántica para aplicaciones de IA. Antes de la versión 10.65.3, el endpoint HTTP MCP JSON-RPC en ’/mcp’ requiere solo el ámbito ’read’ de OAuth para todas las solicitudes, luego despacha ’tools/call’ directamente a manejadores que incluyen herramientas mutantes. Un cliente OAuth de solo lectura puede llamar a ’store_memory’ y ’delete_memory’ a través de MCP, aunque los endpoints REST correspondientes requieran el ámbito ’write’. La versión 10.65.3 corrige el problema."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "doobidoo",
          "product": "mcp-memory-service",
          "versions": [
            {
              "version": "< 10.65.3",
              "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:N/I:H/A:H",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.2
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-06-22T17:07:36.136160Z",
          "id": "CVE-2026-49291",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/doobidoo/mcp-memory-service/security/advisories/GHSA-2r68-g678-7qr3",
      "source": "[email protected]"
    },
    {
      "url": "https://pypi.org/project/mcp-memory-service/10.65.3",
      "source": "[email protected]"
    },
    {
      "url": "https://web.archive.org/web/20260508112116/https://github.com/doobidoo/mcp-memory-service/",
      "source": "[email protected]"
    }
  ]
}