• I apologize in advance that this may be less accurate because I used a translator.

Hello, developer

I am writing to ask you a question about the recent occurrence of attack issues through desrialization vulnerabilities.

We're inevitably using the old version
I'm really sorry to ask you this question about the old version.

We are using CB 14.29 build and flatcoloredblocks 6.8 in 1.12.2 version
I would like to ask if your mode is free from the issue.