All versions of the package speaker are vulnerable to Denial of Service (DoS) when providing unexpected input types to the channels property of the Speaker object makes it possible to reach an assert macro. Exploiting this vulnerability can lead to a process crash.
The product does not properly control the allocation and maintenance of a limited resource.
The product does not handle or incorrectly handles when a particular element is not the expected type, e.g. it expects a digit (0-9) but is provided with a letter (A-Z).