CVE-2026-40007

High

Description

Uncontrolled Recursion, Uncontrolled Resource Consumption vulnerability in Apache IoTDB. When pipe_air_gap_receiver_enabled=true, the IoTDB AirGap receiver's readLength method calls itself recursively each time it recognises the E-language prefix in socket data, with no depth limit. An unauthenticated attacker can send a stream of repeated E-language prefixes that drives the recursion arbitrarily deep, exhausting the receiver thread's JVM stack and raising StackOverflowError. This issue affects Apache IoTDB: from 1.0.0 before 2.0.10. Users are recommended to upgrade to version 2.0.10, which fixes the issue.

SeverityHigh

CVSS7.5

Exploit probability—

ProductApache IoTDB

PublishedJul 10, 2026

First seenJul 10, 2026

Weakness typeCWE-674CWE-674 CWE-400Uncontrolled resource consumption

How to fix

Update

Apache Software Foundation Apache IoTDB2.0.10 or later

Vendor advisories

lists.apache.org/thread/tr23kh6kp8drrsv8ypv1mqm4v5kyy23m

Affected products

Product	Affected versions	Fixed in
Apache Software Foundation Apache IoTDB	1.0.0 ≤ v < 2.0.10	2.0.10

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