CVE-2026-102509 Apache PLC4X, Apache PLC4X: Pre-authentication resource exhaustion in the OPC UA driver and the Java SPI parser

Memory Allocation with Excessive Size Value, Allocation of Resources Without Limits, and Uncontrolled Recursion in the Java implementation of Apache PLC4X PLC4J allow a malicious or impersonated device to exhaust the memory or stack of the client application, causing a denial of service. In the O...