Codegate CTF 2026 Preliminary


CTF Archive.

Codegate CTF 2026 Preliminary

Codegate CTF is the qualifying round of the CODEGATE International Hacking Competition, organized since 2008.

Original Date: 2026
Original URL: https://gen.codegate.org/
CTFtime Entry: Codegate CTF 2026 Preliminary
Organizing Team: CODEGATE



Challenges

Greybox

Challenge

Oh! My Greybox Keeps Running!

Note: The "prob" binary may not function properly outside of the provided Docker environment

Metadata

  • ID: 9
  • Category: rev
  • Value: 250
  • Solves: 172
  • State: visible
  • Solved by me: True

Files

Source

  • API: /api/v1/challenges/9

Use flagCheck to input the flag you get from the challenge to get the actual flag

Author: CODEGATE

Connect with SSH

Link your SSH key, then connect with: ssh [email protected]

WelcomeFlag

Challenge

Do you know semaphore? What he is saying?

flag is all lowercase and no spaces

flag format: codegate2026{[a-z]+}

Metadata

  • ID: 20
  • Category: misc
  • Value: 250
  • Solves: 268
  • State: visible
  • Solved by me: True

Files

Source

  • API: /api/v1/challenges/20

Use flagCheck to input the flag you get from the challenge to get the actual flag

Author: CODEGATE

Connect with SSH

Link your SSH key, then connect with: ssh [email protected]

30-Day Scoreboard:

This scoreboard reflects solves for challenges in this module after the module launched in this dojo.

7-Day | 30-Day | All-Time

Rank Hacker Badges Score