Apache IoTDB 1.3.5-1.3.7 / 2.0.5-2.0.9 Improper Auth: /rest/v2/fastLastQuery
CVE-2026-40452 Published on July 10, 2026
Apache IoTDB: Authorization bypass in /rest/v2/fastLastQuery exposes last-value data to unauthorized authenticated users
Incorrect Authorization, Improper Access Control vulnerability in Apache IoTDB.
Authorization bypass in /rest/v2/fastLastQuery exposes last-value data to unauthorized authenticated users.
This issue affects Apache IoTDB: from 1.3.5 before 1.3.8, from 2.0.5 before 2.0.10.
Users are recommended to upgrade to version 2.0.10, which fixes the issue.
Weakness Types
What is an AuthZ Vulnerability?
The software performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.
CVE-2026-40452 has been classified to as an AuthZ vulnerability or weakness.
What is an Authorization Vulnerability?
The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
CVE-2026-40452 has been classified to as an Authorization vulnerability or weakness.
Products Associated with CVE-2026-40452
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Affected Versions
Apache Software Foundation Apache IoTDB:- Version 1.3.5 and below 1.3.8 is affected.
- Version 2.0.5 and below 2.0.10 is affected.