{
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    "cna": {
      "providerMetadata": {
        "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09"
      },
      "title": "Unauthenticated unbounded recursion in IoTDB AirGap receiver's E-language prefix parser causes per-connection StackOverflowError",
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-674 Uncontrolled Recursion",
              "lang": "en",
              "cweId": "CWE-674",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "description": "CWE-400 Uncontrolled Resource Consumption",
              "lang": "en",
              "cweId": "CWE-400",
              "type": "CWE"
            }
          ]
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "affected": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache IoTDB",
          "versions": [
            {
              "status": "affected",
              "version": "1.0.0",
              "lessThan": "2.0.10",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ],
      "descriptions": [
        {
          "value": "Uncontrolled Recursion, Uncontrolled Resource Consumption vulnerability in Apache IoTDB.\nWhen pipe_air_gap_receiver_enabled=true, the IoTDB AirGap receiver's\nreadLength method calls itself recursively each time it recognises the\nE-language prefix in socket data, with no depth limit. An unauthenticated\nattacker can send a stream of repeated E-language prefixes that drives the\nrecursion arbitrarily deep, exhausting the receiver thread's JVM stack and\nraising StackOverflowError.\n\n\nThis issue affects Apache IoTDB: from 1.0.0 before 2.0.10.\n\nUsers are recommended to upgrade to version 2.0.10, which fixes the issue.",
          "lang": "en",
          "supportingMedia": [
            {
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              "value": "<p>Uncontrolled Recursion, Uncontrolled Resource Consumption vulnerability in Apache IoTDB.<br><span style=\"background-color: rgb(255, 255, 255);\">When pipe_air_gap_receiver_enabled=true, the IoTDB AirGap receiver's\nreadLength method calls itself recursively each time it recognises the\nE-language prefix in socket data, with no depth limit. An unauthenticated\nattacker can send a stream of repeated E-language prefixes that drives the\nrecursion arbitrarily deep, exhausting the receiver thread's JVM stack and\nraising StackOverflowError.</span><br></p><p>This issue affects Apache IoTDB: from 1.0.0 before 2.0.10.</p><p>Users are recommended to upgrade to version 2.0.10, which fixes the issue.</p>"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://lists.apache.org/thread/tr23kh6kp8drrsv8ypv1mqm4v5kyy23m",
          "tags": [
            "vendor-advisory"
          ]
        }
      ],
      "metrics": [
        {
          "other": {
            "type": "Textual description of severity",
            "content": {
              "text": "moderate"
            }
          }
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "bugbunny.ai",
          "type": "finder"
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "cveId": "CVE-2026-40007",
    "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
    "serial": 1,
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}