CVE-2026-40454

{
  "id": "CVE-2026-40454",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-10T08:16:22.750",
  "lastModified": "2026-10-25T15:10:00.147",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Out-of-bounds Read, Improper Input Validation vulnerability in Apache IoTDB C++ client.\nOut-of-bounds reads in IoTDB C++ client TsBlock deserializer crash client\nprocess on malformed server data.\n\n\nThis issue affects Apache IoTDB C++ client: from 1.3.5 before 1.3.8, from 2.0.5 before 2.0.10.\n\nUsers are recommended to upgrade to version 2.0.10, which fixes the issue."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de lectura fuera de límites y validación de entrada incorrecta en el cliente C++ de Apache IoTDB.\nLas lecturas fuera de límites en el deserializador TsBlock del cliente C++ de IoTDB provocan la caída del proceso del cliente al procesar datos de servidor malformados.\n\nEste problema afecta al cliente C++ de Apache IoTDB: desde 1.3.5 antes de 1.3.8, desde 2.0.5 antes de 2.0.10.\n\nSe recomienda a los usuarios actualizar a la versión 2.0.10, que corrige el problema."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache IoTDB C++ client",
          "defaultStatus": "unaffected",
          "packageName": "client-cpp",
          "versions": [
            {
              "version": "1.3.5",
              "lessThan": "1.3.8",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "2.0.5",
              "lessThan": "2.0.10",
              "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:N/I:N/A:H",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-10T14:27:23.764896Z",
          "id": "CVE-2026-40454",
          "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-20"
        },
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://lists.apache.org/thread/9wml325g6bpovw0jf5ymtc3xl7fwlkrn",
      "source": "[email protected]"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2026/07/10/8",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ]
}