CVE-2026-76390

{
  "id": "CVE-2026-76390",
  "sourceIdentifier": "[email protected]",
  "published": "2026-08-19T22:17:25.357",
  "lastModified": "2026-10-24T13:10:00.147",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Cisco Talos Intelligence for Enterprise Security Cloud versions below 1.0.3, an unauthenticated user could access the add-on OpenAPI specification through Splunk Web static file paths. The exposed specification could allow for reconnaissance of the add-on Representational State Transfer (REST) API endpoints and authentication model. The vulnerability is possible because the generated OpenAPI specification is packaged in a static file path that Splunk Web serves without authentication. For more information see Deploy Cisco Talos Intelligence for Splunk Enterprise Security (https://help.splunk.com/en/splunk-enterprise-security-8/user-guide/8.0/introduction/deploy-cisco-talos-intelligence-for-splunk-enterprise-security-cloud-only) in the Splunk documentation."
    },
    {
      "lang": "es",
      "value": "En las versiones de Cisco Talos Intelligence para Enterprise Security Cloud anteriores a la 1.0.3, un usuario no autenticado podría acceder a la especificación OpenAPI del complemento a través de rutas de archivos estáticos de Splunk Web. La especificación expuesta podría permitir el reconocimiento de los puntos finales de la API Representational State Transfer (REST) del complemento y el modelo de autenticación. La vulnerabilidad es posible porque la especificación OpenAPI generada se empaqueta en una ruta de archivo estático que Splunk Web sirve sin autenticación. Para más información, consulte Implementar Cisco Talos Intelligence para Splunk Enterprise Security (https://help.splunk.com/en/splunk-enterprise-security-8/user-guide/8.0/introduction/deploy-cisco-talos-intelligence-for-splunk-enterprise-security-cloud-only) en la documentación de Splunk."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Splunk",
          "product": "Cisco Talos Intelligence for Enterprise Security Cloud",
          "versions": [
            {
              "version": "1.0",
              "lessThan": "1.0.3",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-20T16:07:34.623272Z",
          "id": "CVE-2026-76390",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:cisco:talos_intelligence_for_enterprise_security_cloud:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "1.0.0",
              "versionEndExcluding": "1.0.3",
              "matchCriteriaId": "D08EA442-FC9A-4E3A-BB73-E19CCEAF6295"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://advisory.splunk.com/advisories/SVD-2026-0808",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}