CAT CTF 26

A 24-hour jeopardy CTF built for people who are still learning, and hard enough to keep everyone else honest.

  • Fri 11 Sept 2026, 12:00 UTC
  • Runs 24 hours
  • Jeopardy

Two stages

  • 11–12 Sept · 24 hours

    Online qualification

    The 24-hour jeopardy CTF, played from anywhere.

    Who
    Everyone, worldwide
    Where
    Online, on this site
  • Sat 17 Sept

    On-site finals

    The top qualifying teams play the finals in person.

    Who
    All University students All Over The World
    Where
    Mansoura University campus

Welcome

CAT CTF 26 is organized by the CAT Reloaded student activity club at Mansoura University. We started this event to give university students a serious place to practise security — but the doors are open to everyone, anywhere, at no cost.

Challenges are spread across five categories, on a difficulty curve that starts gentle and does not stay that way.

  • WebFind the bug in a website and make it hand you something it shouldn’t.
  • PwnBreak a running binary’s memory and take control of it.
  • ReverseWork out what a compiled program does without its source.
  • ForensicsRecover the truth from a disk image, a capture, or a tampered file.
  • OSINTFind what someone left in public without meaning to.