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Daily AlpacaHack

A daily CTF challenge with a fun new puzzle every day

What is Daily AlpacaHack?

We publish one simple, beginner-friendly or educational CTF challenge every day!

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Today's Challenge

Bounds Checking

Submissions (latest 3)

SOLVED!

May 9, 5:39 PM

SOLVED!

May 9, 5:32 PM

SOLVED!

May 9, 5:01 PM

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AlpacaHack 2100

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Sep 2046

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Rows:

Flag Printer 2026

Topic: NetworkReleased: Mar 4, 2026

215 solves

Easy

by

minaminao

Tags

f ~~~~~~~~~~~~~~~~~~~~ l ~~~~~~~~~~~~~~~~~~~~ a ~~~~~~~~~~~~~~~~~~~~ g ~~~~~~~~~~~~~~~~~~~~

Beginner Hint

When you connect using nc, you can see that the part of the flag after Alpaca{ is not printed.
If you read the Dockerfile, you may understand why this happens.

flag-printer-2026.tar.gz

description solves writeups