upCTF 2026
upCTF (University of Porto CTF) is a Jeopardy CTF event hosted by xSTF (https://xstf.pt), a cybersecurity academic team from Portugal.
upCTF 2026 is the first edition of this event, we hope to have a lot of teams joining and give us a good review so we can improve and make this event every year!
The CTF will take place online with a duration of 48 hours, from Sat, 7 Mar. 2026, 09:00 UTC to Mon, 9 Mar. 2026, 09:00 UTC.
We will have the following categories:
Misc Reverse Engineering Cryptography Forensics Binary Exploitation Web Exploitation OSINT
Join our Discord: https://discord.gg/
Infra sponsored by Ethiack (https://ethiack.com)
Thank you to our sponsors: - Ethiack - Caido - Hackviser - APISEC University - Knight Squad Academy
Web 9
| Challenge | Has |
|---|---|
| 0day_on_ipaddress | files |
| Media_meeting | files |
| Microsoft_Axel | files |
| Microsoft_Axel_Revenge | files |
| Ouro_no_Pesco_o | files |
| Ouro_no_Pesco_o_Revenge | files |
| Post_Builder | files |
| Solar_Eclipse | files |
| mAuth | files |
Pwn 4
| Challenge | Has |
|---|---|
| EU_Filter | files |
| Generous_Allocator | files |
| car_museum | files |
| cyberchump | files |
Reverse 4
| Challenge | Has |
|---|---|
| Inconspicuous_Program | files |
| Locked_Temple | files |
| Minecraft_Enterprise_Edition | files |
| Old_Calculator | files |
Crypto 5
| Challenge | Has |
|---|---|
| Hidden_Signal | files |
| LH_RH | files |
| Weird_Equations | files |
| vibedns | files |
| xSTFs_Decryption_Capsule | files |
Forensics 2
| Challenge | Has |
|---|---|
| Remember_Me | files |
| xSTFs_Annual_Security_Report | files |
Misc 3
| Challenge | Has |
|---|---|
| Deoxyribonucleic_acid | files |
| Happy_new_year | files |
| Jailed | files |
OSINT 4
| Challenge | Has |
|---|---|
| Boo | files |
| DIG | files |
| Left_Behind | files |
| Running_Enthusiast | files |