Show HN: Postgres Security Educational Tasks

I've created few Docker-based educational tasks to try yourself in exploiting historical vulnerabilities. I'm not a realy docker-pro, many parts can be implemented in a wrong way. However I've checked that all 3 containers can be pwned. Any feedback would be greatly appreciated. Same goes about PRs with other CVEs. Originally, this tasks were developed for PGDay Israel 2023, but now conference is postponed.