JerryScript, a lightweight JavaScript engine from the JerryScript project, has a security vulnerability in version 3.0.0 of JerryScript, which originates in /jerry-core/ecma/operations/ecma-objects.c The ecma_object_check_class_name_is_object (obj_p) declaration in /jerry-core/operations/ecma-objects.c fails. No details of the vulnerability are provided at this time.