This open access 3-volume set constitutes the proceedings of the 38th International Conference, CAV 2026, held in Lisbon, Portugal, in July 2026.The 54 full papers, together with 21 short tool papers,and 6 industrial experience reports and case studies, were carefully reviewed and selected from 319 submissions.These papers apply or extend formal methods to a wide range of domains such as concurrency, machine learning and neural networks, quantum systems,as well as hybrid and stochastic systems.This annual conference is dedicated to the advancement of the theory and practice of computer-aided formal analysis methods for hardware and software systems. This year, CAV was held as part of the Federated Logic Conference (FLoC).
