CVE-2026-102508

Improper Verification of Cryptographic Signature and Improper Certificate Validation in the OPC UA driver of Apache PLC4X PLC4J allows an attacker in a network position between client and server to impersonate the OPC UA server and to read, forge or modify secure-channel traffic, including user...

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...

CVE-2026-102509

The Apache PLC4X (PLC4J) Java implementation is vulnerable to pre-authentication resource exhaustion in the OPC UA driver and the Java SPI parser . The root causes include memory allocation with excessive size values, allocation of resources without limits, and uncontrolled recursion. Specificall...

EUVD-2026-89674

Improper Verification of Cryptographic Signature and Improper Certificate Validation in the OPC UA driver of Apache PLC4X PLC4J allows an attacker in a network position between client and server to impersonate the OPC UA server and to read, forge or modify secure-channel traffic, including user...