Buffer overflow in IBM WebSphere Application Server (WAS) 7.0 before 7.0.0.43, 8.0 before 8.0.0.13, 8.5 before 8.5.5.10, 9.0 before 9.0.0.1, and Liberty before 16.0.0.3, when HttpSessionIdReuse is enabled, allows remote authenticated users to obtain sensitive information via unspecified vectors.