NNS 2026
Join us for a jeopardy-style CTF organized by the Norske Nøkkelsnikere CTF team! Expect quality challenges in categories such as web, misc, crypto, blockchain, devsecoops, rev, pwn, and more! We welcome beginners and advanced players.
Sponsors: OtterSec, Zellic, EPT
Discord: https://discord.gg/9AZr3WKrjG
Web 8
| Challenge | Has |
|---|---|
| ASS | files |
| AgilePaste_3 | files |
| Ein_milljon_bjora | files |
| File_Monster | files |
| NNS_Travel | files |
| PHP_is_my_passion | files |
| bloatware.js | files |
| perchance | files |
Pwn 10
| Challenge | Has |
|---|---|
| 1up_clank_bro | files |
| BYOC | files |
| Echo_chamber | files |
| File_parser | files |
| No_win | files |
| Parcel_delivery | files |
| coins | files |
| escapetime | files |
| jailnet | files |
| pset1 | files |
Reverse 9
| Challenge | Has |
|---|---|
| Flag_Pointer_Register | files |
| Harald_Blatann | files |
| No_Strings_Attached | files |
| Open_Secret | files |
| Patch_Tuesday | files |
| Scratch_Space | files |
| Time_Lock | files |
| purgatory | files |
| small_guy | files |
Crypto 10
| Challenge | Has |
|---|---|
| BeginneRSA | files |
| Crypto_Party_2 | files |
| Downhill | files |
| EC_PZ | files |
| From_Nothing | files |
| Light_Weight_Encryption | files |
| NRT | files |
| NSS_CTF | files |
| Nostalgia | files |
| impossible | files |
Forensics 1
| Challenge | Has |
|---|---|
| Min_beste_venn | files |
Misc 14
| Challenge | Has |
|---|---|
| boot2root | files |
| Chiral | files |
| Dot_matrix | files |
| Hardware_accelerated_flag_checker_1 | files |
| Hardware_accelerated_flag_checker_2 | files |
| Keyboard | files |
| NNS_International_Lounge | files |
| Silent | files |
| Sleepy_CPU | files |
| Triangle_platform | files |
| happy | files |
| littlefs | files |
| minitaturbaum_plfanze | files |
| react.jail.js | files |
Blockchain 6
| Challenge | Has |
|---|---|
| Bank_of_NNS | files |
| Block_Rehearsal | files |
| CERN | files |
| Glomma_River_Trading | files |
| eu261 | files |
| void | files |