{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-40454", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2026-04-13T09:02:17.905Z", "datePublished": "2026-07-10T07:19:01.868Z", "dateUpdated": "2026-07-10T07:19:01.868Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "packageName": "client-cpp", "product": "Apache IoTDB C++ client", "vendor": "Apache Software Foundation", "versions": [{"lessThan": "1.3.8", "status": "affected", "version": "1.3.5", "versionType": "semver"}, {"lessThan": "2.0.10", "status": "affected", "version": "2.0.5", "versionType": "semver"}]}], "credits": [{"lang": "en", "type": "finder", "value": "bugbunny.ai"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Out-of-bounds Read, Improper Input Validation vulnerability in Apache IoTDB C++ client.<br><span style=\"background-color: rgb(255, 255, 255);\">Out-of-bounds reads in IoTDB C++ client TsBlock deserializer crash client\nprocess on malformed server data.</span><br></p><p>This issue affects Apache IoTDB C++ client: from 1.3.5 before 1.3.8, from 2.0.5 before 2.0.10.</p><p>Users are recommended to upgrade to version 2.0.10, which fixes the issue.</p>"}], "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."}], "metrics": [{"other": {"content": {"text": "moderate"}, "type": "Textual description of severity"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-125", "description": "CWE-125 Out-of-bounds Read", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-20", "description": "CWE-20 Improper Input Validation", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-07-10T07:19:01.868Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://lists.apache.org/thread/9wml325g6bpovw0jf5ymtc3xl7fwlkrn"}], "source": {"discovery": "UNKNOWN"}, "title": "Apache IoTDB C++ client: Out-of-bounds reads in C++ client TsBlock deserializer crash client process on malformed server data", "x_generator": {"engine": "Vulnogram 0.2.0"}}}}

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