A flaw was found in @grpc/grpc-js, a pure JavaScript gRPC client and server library. An invalid incoming compressed message can cause a client or server process to crash. This vulnerability affects all clients and servers that use @grpc/grpc-js, and no workaround is available. An unauthenticated remote attacker can exploit this to cause a denial of service by sending a malformed compressed message over a gRPC connection.