Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2026-40452

Severity CVSS v4.0:
Pending analysis
Type:
CWE-284 Improper Access Control
Publication date:
10/07/2026
Last modified:
10/07/2026

Description

Incorrect Authorization, Improper Access Control vulnerability in Apache IoTDB.<br /> Authorization bypass in /rest/v2/fastLastQuery exposes last-value data to unauthorized authenticated users.<br /> <br /> <br /> This issue affects Apache IoTDB: from 1.3.5 before 1.3.8, from 2.0.5 before 2.0.10.<br /> <br /> Users are recommended to upgrade to version 2.0.10, which fixes the issue.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

Base Score 3.x
7.50
Severity 3.x
HIGH

References to Advisories, Solutions, and Tools