What is the common word used among programmers for a bug? What is the translation for a computer bug that is being commonly used in the programming environment?
Among Chinese users, especially programmers, it's common to informally use the English word "Bug". Often capitalised as "BUG".

See for example this blog post: 软件 Bug 引发的十次严重后果

See also: https://baike.baidu.com/item/bug/32708