CVE-2026-23904

{
  "id": "CVE-2026-23904",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-29T10:16:40.913",
  "lastModified": "2026-10-23T23:10:00.157",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Kyuubi Engine UI proxy accepts a host and port from the request path and proxies HTTP requests to that destination. A remote requester with network access to the proxy can cause the Kyuubi server to send HTTP requests to arbitrary reachable hosts, resulting in SSRF or open-proxy behavior.\n\n\nThis issue affects Apache Kyuubi: from 1.8.0 before 1.12.0.\n\nUsers are recommended to upgrade to version 1.12.0, which disables the proxy by default. To restore proxied Engine UI, set kyuubi.frontend.rest.engine.ui.proxy.enabled=true and configure allowed target hosts with kyuubi.frontend.rest.engine.ui.proxy.hosts."
    },
    {
      "lang": "es",
      "value": "El proxy de la interfaz de usuario de Kyuubi Engine acepta un host y un puerto de la ruta de la solicitud y actúa como proxy para las solicitudes HTTP a ese destino. Un solicitante remoto con acceso de red al proxy puede hacer que el servidor Kyuubi envíe solicitudes HTTP a hosts arbitrarios accesibles, lo que resulta en SSRF o comportamiento de proxy abierto.\n\nEste problema afecta a Apache Kyuubi: desde la versión 1.8.0 hasta antes de la 1.12.0.\n\nSe recomienda a los usuarios actualizar a la versión 1.12.0, que deshabilita el proxy por defecto. Para restaurar la interfaz de usuario de Engine con proxy, establezca kyuubi.frontend.rest.engine.ui.proxy.enabled=true y configure los hosts de destino permitidos con kyuubi.frontend.rest.engine.ui.proxy.hosts."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache Kyuubi",
          "defaultStatus": "unaffected",
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "packageName": "org.apache.kyuubi:kyuubi-server",
          "versions": [
            {
              "version": "1.8.0",
              "lessThan": "1.12.0",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
          "baseScore": 7.3,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-29T14:00:33.613216Z",
          "id": "CVE-2026-23904",
          "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-923"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:apache:kyuubi:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "1.8.0",
              "versionEndExcluding": "1.12.0",
              "matchCriteriaId": "C91B47BA-EB31-4B09-B743-BCA028DB4855"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/apache/kyuubi/pull/7483",
      "source": "[email protected]",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://lists.apache.org/thread/ps79fcfx49ox9kwgztc5t5bw0tyhck9m",
      "source": "[email protected]",
      "tags": [
        "Mailing List",
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2026/07/29/3",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    }
  ]
}