CVE-2026-27678

{
  "id": "CVE-2026-27678",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-14T00:16:06.270",
  "lastModified": "2026-10-26T21:10:00.170",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Due to missing authorization checks in the SAP S/4HANA backend OData Service (Manage Reference Structures), an attacker could update and delete child entities via exposed OData services without proper authorization. This vulnerability has a high impact on integrity, while confidentiality and availability are not impacted."
    },
    {
      "lang": "es",
      "value": "Debido a la falta de comprobaciones de autorización en el servicio OData de backend de SAP S/4HANA (Manage Reference Structures), un atacante podría actualizar y eliminar entidades secundarias a través de servicios OData expuestos sin la autorización adecuada. Esta vulnerabilidad tiene un alto impacto en la integridad, mientras que la confidencialidad y la disponibilidad no se ven afectadas."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "SAP_SE",
          "product": "SAP S/4HANA Backend OData Service (Manage Reference Structures)",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "S4CORE 109",
              "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:N",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-04-14T12:54:47.817871Z",
          "id": "CVE-2026-27678",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://me.sap.com/notes/3715177",
      "source": "[email protected]"
    },
    {
      "url": "https://url.sap/sapsecuritypatchday",
      "source": "[email protected]"
    }
  ]
}