CVE-2026-5374

{
  "id": "CVE-2026-5374",
  "sourceIdentifier": "44488dab-36db-4358-99f9-bc116477f914",
  "published": "2026-04-07T15:17:47.307",
  "lastModified": "2026-10-26T21:10:00.170",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue that allowed MCP agents to access remediation and asset information from outside of the authorized organization scope has been resolved. This is an instance of CWE-863: Incorrect Authorization, and has an estimated CVSS score of CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N (5.8 Medium). This issue was fixed in version 4.0.260202.0 of the runZero Platform."
    },
    {
      "lang": "es",
      "value": "Un problema que permitía a los agentes de MCP acceder a información de remediación y activos desde fuera del alcance de la organización autorizada ha sido resuelto. Esto es una instancia de CWE-863: Autorización Incorrecta, y tiene una puntuación CVSS estimada de CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N (5.8 Media). Este problema fue corregido en la versión 4.0.260202.0 de la Plataforma runZero."
    }
  ],
  "affected": [
    {
      "source": "44488dab-36db-4358-99f9-bc116477f914",
      "affectedData": [
        {
          "vendor": "runZero",
          "product": "Platform",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0",
              "lessThan": "4.0.260202.0",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "44488dab-36db-4358-99f9-bc116477f914",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N",
          "baseScore": 5.8,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "HIGH",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 1.3,
        "impactScore": 4.0
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-04-07T14:31:36.829367Z",
          "id": "CVE-2026-5374",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "44488dab-36db-4358-99f9-bc116477f914",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:runzero:runzero_platform:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "4.0.260202.0",
              "matchCriteriaId": "0C017AE6-897C-4120-B1B0-B1238A3CC741"
            }
          ]
        }
      ]
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  ],
  "references": [
    {
      "url": "https://help.runzero.com/docs/release-notes/#402602020",
      "source": "44488dab-36db-4358-99f9-bc116477f914",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "https://www.runzero.com/advisories/runzero-platform-mcp-infoleak-cve-2026-5374/",
      "source": "44488dab-36db-4358-99f9-bc116477f914",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}