{"id":"CVE-2026-40007","state":"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.","publishedAt":"2026-07-10T07:12:29.926Z","updatedAt":"2026-07-10T14:54:55.434Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"apache","products":["Apache Software Foundation Apache IoTDB"],"affected":[{"vendor":"Apache Software Foundation","product":"Apache IoTDB","defaultStatus":"unaffected","versions":[{"version":"1.0.0","status":"affected","lessThan":"2.0.10","versionType":"semver"}]}],"references":["https://lists.apache.org/thread/tr23kh6kp8drrsv8ypv1mqm4v5kyy23m","http://www.openwall.com/lists/oss-security/2026/07/10/4"],"weaknesses":["CWE-674","CWE-400"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/40xxx/CVE-2026-40007.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-40007","state":"PUBLISHED","datePublished":"2026-07-10T07:12:29.926Z","dateUpdated":"2026-07-10T14:54:55.434Z","assignerShortName":"apache","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateReserved":"2026-04-08T08:42:31.995Z"},"containers":{"cna":{"title":"Apache IoTDB: Unauthenticated unbounded recursion in IoTDB AirGap receiver's E-language prefix parser causes per-connection StackOverflowError","descriptions":[{"lang":"en","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."}],"affected":[{"vendor":"Apache Software Foundation","product":"Apache IoTDB","defaultStatus":"unaffected","versions":[{"version":"1.0.0","status":"affected","lessThan":"2.0.10","versionType":"semver"}]}],"references":[{"url":"https://lists.apache.org/thread/tr23kh6kp8drrsv8ypv1mqm4v5kyy23m","tags":["vendor-advisory"]}],"metrics":[{"other":{"content":{"text":"moderate"},"type":"Textual description of severity"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-674","description":"CWE-674 Uncontrolled Recursion","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-400","description":"CWE-400 Uncontrolled Resource Consumption","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"apache","orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateUpdated":"2026-07-10T07:12:29.926Z"},"credits":[{"lang":"en","type":"finder","value":"bugbunny.ai"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-07-10T14:07:37.243571Z","id":"CVE-2026-40007","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-10T14:07:40.441Z"}},{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/07/10/4"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2026-07-10T14:54:55.434Z"}}]}}}