CVE-2026-66760

{
  "id": "CVE-2026-66760",
  "sourceIdentifier": "[email protected]",
  "published": "2026-08-11T01:17:22.757",
  "lastModified": "2026-10-24T16:10:00.153",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "SAP Approuter does not correctly validate client certificates in certain callback flows. An attacker with low privileges, holding a certificate from the same trusted authority with matching subject values, could bypass the identity check. This complexity makes the attack difficult to execute. Successful exploitation could allow impersonation of a trusted internal component, resulting in a high impact on integrity and a low impact on confidentiality and availability."
    },
    {
      "lang": "es",
      "value": "SAP Approuter no valida correctamente los certificados de cliente en ciertos flujos de devolución de llamada. Un atacante con privilegios bajos, que posee un certificado de la misma autoridad de confianza con valores de asunto coincidentes, podría eludir la verificación de identidad. Esta complejidad hace que el ataque sea difícil de ejecutar. La explotación exitosa podría permitir la suplantación de un componente interno de confianza, lo que resultaría en un alto impacto en la integridad y un bajo impacto en la confidencialidad y la disponibilidad."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "SAP_SE",
          "product": "SAP Business AI Platform (Approuter)",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "SAP Approuter node.js package < 23.0.0",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L",
          "baseScore": 6.4,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "HIGH",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 4.7
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-11T13:17:27.251606Z",
          "id": "CVE-2026-66760",
          "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-295"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:sap:approuter:*:*:*:*:*:node.js:*:*",
              "versionEndExcluding": "23.0.0",
              "matchCriteriaId": "BC1312BC-17DB-45F4-864B-606D46FFFDEE"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://me.sap.com/notes/3786038",
      "source": "[email protected]",
      "tags": [
        "Permissions Required"
      ]
    },
    {
      "url": "https://url.sap/sapsecuritypatchday",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}