{"id":"CVE-2026-40007","aliases":["EUVD-2026-42835","GHSA-4644-hpfg-x44q"],"status":"published","title":"Apache IoTDB: Unauthenticated unbounded recursion in IoTDB AirGap receiver's E-language prefix parser causes per-connection StackOverflowError","description":"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.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-11","score":0.00488,"percentile":0.42467,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400","CWE-674"],"published":"2026-07-10T07:12:29Z","modified":"2026-10-25T15:10:00Z","products":[{"vendor":"apache software foundation","product":"apache iotdb"}],"references":[{"url":"https://lists.apache.org/thread/tr23kh6kp8drrsv8ypv1mqm4v5kyy23m","tags":["vendor-advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2026/07/10/4"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40007"},{"url":"https://github.com/advisories/GHSA-4644-hpfg-x44q"}],"sources":{"cve":[{"id":"CVE-2026-40007","title":"Apache IoTDB: Unauthenticated unbounded recursion in IoTDB AirGap receiver's E-language prefix parser causes per-connection StackOverflowError","description":"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.","status":"published","published":"2026-07-10T07:12:29.926Z","modified":"2026-07-10T14:54:55.434Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-674","CWE-400"],"updated_at":"2026-11-02T13:43:11.445168Z"}],"euvd":[{"id":"EUVD-2026-42835","description":"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.","status":"published","published":"2026-07-10T07:12:29Z","modified":"2026-07-10T14:54:55Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T18:20:02.822464Z"}],"ghsa":[{"id":"GHSA-4644-hpfg-x44q","title":"Uncontrolled Recursion, Uncontrolled Resource Consumption vulnerability in Apache IoTDB.\nWhen...","description":"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.","status":"published","published":"2026-07-10T09:31:37Z","modified":"2026-07-10T18:32:14Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:09:23.304195Z"}],"nvd":[{"id":"CVE-2026-40007","description":"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.","status":"published","published":"2026-07-10T08:16:22.28Z","modified":"2026-10-25T15:10:00.147Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-400","CWE-674"],"updated_at":"2026-11-02T14:12:28.771746Z"}]}}