{"schema_version": "1.6.1", "id": "CVE-2026-40452", "summary": "Authorization bypass in /rest/v2/fastLastQuery exposes last-value data to unauthorized authenticated users", "details": "Incorrect Authorization, Improper Access Control vulnerability in Apache IoTDB.\nAuthorization bypass in /rest/v2/fastLastQuery exposes last-value data to unauthorized authenticated users.\n\n\nThis issue affects Apache IoTDB: 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.", "affected": [{"ranges": [{"type": "SEMVER", "events": [{"introduced": "1.3.5"}, {"fixed": "1.3.8"}]}, {"type": "SEMVER", "events": [{"introduced": "2.0.5"}, {"fixed": "2.0.10"}]}]}], "references": [{"type": "WEB", "url": "https://lists.apache.org/thread/04j2l6dosyboor4o2gvrzbrcrpllmh95"}]}