CVE-2026-40452

Apache IoTDB: Authorization bypass in /rest/v2/fastLastQuery exposes last-value data to unauthorized authenticated users

State: Published
Severity: 7.5 High
Published: Jul 10, 2026
Updated: Jul 10, 2026
Reserved: Apr 13, 2026

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Description

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.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N	CISA-ADP

Weaknesses

CWE-863 Incorrect Authorization
CWE-284 Improper Access Control

Affected Products

Product	Versions
Apache IoTDBApache Software Foundation	1.3.5 to before 1.3.8Affected 2.0.5 to before 2.0.10Affected

References

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