CVE-2026-41114: Apache IoTDB JDBC Driver DoS Vulnerability

CVE-2026-41114 Overview

CVE-2026-41114 is an uncontrolled resource consumption vulnerability [CWE-400] in the Apache IoTDB Java Database Connectivity (JDBC) driver. The flaw affects driver versions from 1.3.3 up to, but not including, 2.0.11. Apache has released version 2.0.11 to address the issue.

The weakness allows an attacker-controlled or malformed interaction with the JDBC driver to consume excessive system resources. This can degrade availability for applications that depend on IoTDB for time-series data access.

Critical Impact
Applications using vulnerable Apache IoTDB JDBC driver versions may experience denial of service through exhaustion of memory, CPU, or connection resources handled by the driver.

Affected Products

Apache IoTDB JDBC driver 1.3.3 through 2.0.10
Applications embedding the vulnerable Apache IoTDB JDBC driver
Downstream data pipelines and services connecting to Apache IoTDB through the affected driver

Discovery Timeline

2026-10-21 - CVE-2026-41114 published to the National Vulnerability Database (NVD)
2026-10-22 - Last updated in NVD database

Technical Details for CVE-2026-41114

Vulnerability Analysis

The Apache IoTDB JDBC driver fails to properly bound the resources it allocates while processing data from a remote endpoint. Classified under [CWE-400] Uncontrolled Resource Consumption, the issue allows a client or server interaction to drive the driver into allocating memory, threads, or connection state without a safeguarding limit.

The root defect lives inside driver code rather than the IoTDB server, so any application that loads an affected driver version becomes exposed. The Apache project resolved the issue in release 2.0.11 by introducing resource bounds in the affected code path. See the Apache Thread Discussion and the OpenWall OSS-Security Update for the project's advisory details.

Root Cause

The driver processes input without enforcing an upper bound on the resources it allocates. When the input is large, malformed, or repeated, the driver continues to consume memory and compute cycles until the host process degrades or crashes.

Attack Vector

An attacker who can influence responses returned to a JDBC client, or who controls a server the client connects to, can trigger the resource exhaustion. The precise prerequisites and exploit mechanics have not been publicly detailed in the referenced advisories. Refer to the Apache security announcement for authoritative technical specifics.

Detection Methods for CVE-2026-41114

Indicators of Compromise

Repeated out-of-memory errors or java.lang.OutOfMemoryError events in application logs tied to IoTDB JDBC calls
Sudden spikes in heap usage, thread count, or garbage collection pressure in services using the Apache IoTDB JDBC driver
Unresponsive application processes or hung JDBC connections after communication with IoTDB endpoints

Detection Strategies

Inventory all Java applications and container images for iotdb-jdbc driver versions between 1.3.3 and 2.0.10
Correlate application crash events with recent connections to IoTDB endpoints to identify suspicious triggers
Enable JVM metrics collection on hosts running IoTDB client workloads to detect anomalous memory growth

Monitoring Recommendations

Alert on repeated JVM restarts, heap dumps, or process kills on hosts running IoTDB client applications
Monitor network traffic patterns between client applications and IoTDB servers for abnormal payload sizes
Track driver versions in software bills of materials (SBOMs) and flag deployments that still carry affected releases

How to Mitigate CVE-2026-41114

Immediate Actions Required

Upgrade the Apache IoTDB JDBC driver to version 2.0.11 or later in all applications and build pipelines
Rebuild and redeploy any shaded or fat JAR artifacts that embed the vulnerable driver
Restrict network reachability so that only trusted IoTDB servers can respond to client JDBC connections

Patch Information

Apache has released Apache IoTDB JDBC driver 2.0.11, which fixes CVE-2026-41114. All users of versions 1.3.3 through 2.0.10 are advised to upgrade. Patch details are available through the Apache Thread Discussion and the OpenWall OSS-Security Update.

Workarounds

No vendor-approved workaround is published; upgrading to 2.0.11 is the recommended remediation
Limit JDBC client exposure to untrusted or internet-facing IoTDB endpoints until the upgrade is complete
Enforce JVM heap and thread limits on affected processes to contain the blast radius of resource exhaustion

bash

# Example Maven dependency update to the fixed version
mvn versions:use-dep-version \
  -Dincludes=org.apache.iotdb:iotdb-jdbc \
  -DdepVersion=2.0.11 \
  -DforceVersion=true