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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:


"Agency is self-determination. It's about making choices that increase yours, AND helping others to control theirs."

Across mythologies worldwide, there is a persistent story of a trickster who steals fire from the gods and gifted it to humans, symbolizing the human acquisition of knowledge, technology, and more broadly, civilization. The most famous example of this mythos is Prometheus.

Like these tricksters before us, teaching others to hack is a gift that gives others agency in a modern world that often leaves the human behind. With this power you can do good, or evil, but the choice has been bestowed upon you, and that makes all the difference.


Updates

July 28, 2026 - DEF CON 34 Event Registration

Want to learn more about Kubernetes hacking or compete against other people in a Capture the Flag contest? Sign up on-line and come see us in person/on Discord at the Kubernetes Capture the Flag (CTF) contest .

We have two events - you can play in both if you like.

Learning (non-competitive) CTF for DEF CON 34 - Friday-Sunday

From Friday to Sunday, we have a non-competitive Learning CTF, where you can go through last year's Kubernetes CTF scenario, referring to a cheat sheet whenever you want. This runs from Friday 12:00 to Sunday 12:00. We'll be in the contest area to support you during:

Friday: 12:00-17:00 Saturday: 10:00-17:00 Sunday: 10:00-12:00

Competitive CTF for DEF CON 34 - Saturday

On Saturday only, you can play in the competitive Kubernetes CTF challenge, where teams (of one or more) can build and test their skills. Each team is given access to the CTFd system that contains a set of challenges. For each challenge, they will be able to launch a cluster on demand. This runs from 10:30am to 5:30pm on Saturday. The competitive CTF is an in-person experience. To register for the competitive CTF, you must come to the contest booth at DEF CON to receive the CTFd joining code.


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.

DEF CON 34 Intership Flyer

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.