Uncontrolled Recursion in Apache IoTDB - CVE-2026-40007
Published: August 24, 2026
Vulnerability identifier: #VU144726
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-40007
CWE-ID: CWE-674
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to uncontrolled recursion in the AirGap receiver readLength method when parsing socket data containing repeated E-language prefixes. A remote attacker can send a stream of repeated E-language prefixes to cause a denial of service.
Only instances with pipe_air_gap_receiver_enabled=true are vulnerable.
Affected software
Apache IoTDB
How to mitigate CVE-2026-40007
Install security update from vendor's website.
Apache IoTDB - update to 2.0.10