This Kubernetes Capture the Flag (CTF) contest features a Kubernetes-based CTF challenge, where teams and individuals can build and test their Kubernetes skills. Each team/individual is given access to a single Kubernetes cluster that contains a set of serial challenges.

This event runs two parallel activities:

Cooperative CTF - run through the previous year's CTF with walkthrough instructions, to learn about Kubernetes and container security!
Competitive CTF - compete against other teams on the new contest for points, learning and comraderie!

Recent Updates

April 17, 2026 - Preparations

Preparations are now well underway for DEF CON 34, and the Kubernetes CTF will be returning for the seventh year.

We're currently looking for field engineer interns! Details and instructions on how to apply can be found here or viewed directly below.

Feburary 18, 2026 - DEF CON 34

Plans are in the works for the seventh Kubernetes CTF at DEF CON!

September 1, 2025 - Last year's contest: DEF CON 33

Learn about last year's CTF contest.