Registration open · Quals begin Sat 10 May, 13:00 UTC

Midnight Sun CTF 2026

HackingForSoju managed to pull themselves out of their (soju) bottles to scrape together yet another CTF event. Come guess our flags, OSINT our organisers, and — if you qualify — come get drunk with us at our finals event in Stockholm, Sweden.

QualsSun 10 May 13:00 UTCMon 11 May 13:00 UTC
FinalsThu 04 Jun 08:00 CETFri 05 Jun 12:00 CET
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Prizes

Trip to Midnight Sun finals

Qualifying teams get a trip to Stockholm, Sweden in June to play at the finals event.

Binary Ninja licenses

Take your reverse engineering to the next level with some licenses for Binary Ninja for the top team.

Beer money

Top three teams get $512, $256 and $128 respectively — enough for the finer things, like a bottle of soju on us.

→ Plus the Master of Speed Pwn award: 1 Binary Ninja license to the team that completes the most speed pwns in the shortest cumulative time.

Sponsors

FAQ

What categories will I find?

The five usual suspects: pwn, rev, web, crypto, and misc. Difficulty ranges from beginner-friendly to nasty.

What is the flag format?

All flags are midnight{...} unless explicitly stated otherwise on the challenge page.

How big can my team be?

Quals: unlimited. Finals: five players per team, on-site.

One account per team or per player?

One account per team. Share the password with your teammates — there is nothing destructive an account can do.

Where do I ask questions during the event?

Discord. Look for organisers tagged @org.

Can a team mix academic and professional players?

Yes. Both classes are eligible to qualify; classification is for stats only.