Incorrect authorization in Apache IoTDB - CVE-2026-40452
Published: August 24, 2026
Vulnerability identifier: #VU144729
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-40452
CWE-ID: CWE-863
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose last-value data.
The vulnerability exists due to improper access control in /rest/v2/fastLastQuery when handling authenticated requests. A remote user can send a request to the endpoint to disclose last-value data.
Affected software
Apache IoTDB
How to mitigate CVE-2026-40452
Install security update from vendor's website.
Apache IoTDB - update to 2.0.10