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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!

Join Anytime

Solve within 24 hours of release to appear on the leaderboard.

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Discussion with friends or AI is welcome (account sharing is prohibited).

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Sharing solutions is allowed only after 24 hours have passed since release.

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Today's Challenge
baumroll1234
Redirecting to Login Page
Web
Easy🌱
76 solves
Submissions (latest 3)
gin

SOLVED!

Jul 13, 9:47 AM

f1023n

SOLVED!

Jul 13, 9:45 AM

gattoartz

SOLVED!

Jul 13, 9:31 AM

Leaderboard

Try the first challenge

Is this your first CTF? Let's begin by tackling the first challenge released on Daily AlpacaHack.

View challenge
admin
AlpacaHack 2100
Misc
Welcome🌱
1,968 solves
Upcoming challenges reveal the , , and in advance.
Prev

Jul 2026

Next
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Upcoming
Mon
Tue
Wed
Thu
Fri
Sat
Sun
29
tchentchen
Nano Services
Web
Medium
81 solves
30
minaminaominaminao
Super Short System Exit
Misc
Medium
79 solves
1
admin
Alpaca Nation
Misc
Welcome🌱
188 solves
2
hiikunzhiikunz
Flag is A+B
Crypto
Easy🌱
118 solves
3
tchentchen
Lucky Redirect
Web
Easy🌱
111 solves
4
hiikunzhiikunz
Renda
Rev
Medium
97 solves
5
tchentchen
IP Blocked Secret
Web
Hard
61 solves
6
minaminaominaminao
duplicate entry
Misc
Easy🌱
116 solves
7
hiikunzhiikunz
Lazy RSA
Crypto
Medium
96 solves
8
minaminaominaminao
Let's Poly1305!
Crypto
Medium
72 solves
9
shiragishiragi
private method
Misc
Easy🌱
104 solves
10
hiikunzhiikunz
secret-table-3
Web
Medium
76 solves
11
baumroll1234
A slight mistake
Pwn
Hard
60 solves
12
tan90909090tan90909090
13
baumroll1234
Redirecting to Login Page
Web
Easy🌱
76 solves
14
tchentchen
Planned topicJail
Misc
Medium
15
Coming soon
16
Coming soon
17
Planned topicMAC
Crypto
Medium
18
Planned topicCGI
Web
Hard
19
Planned topicStack
Pwn
Hard
20
Coming soon
21
Coming soon
22
Planned topicCache
Web
Medium
23
Coming soon
24
Coming soon
25
Planned topicMAC
Crypto
Hard
26
Planned topicPython
Web
Hard
27
Coming soon
28
Coming soon
29
Coming soon
30
Coming soon
31
Coming soon
2
Coming soon

Want a harder challenge?

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Writeups

secret-table-3 Writeup

nomeaning

ja
secret-table-3

9 hours ago

Writeup for A slight mistake

author
ja

22 hours ago

kurimochi

Writeup for Let's Poly1305!

ja

2026/07/10 13:13

nitcelcius

Writeup for private method

ja

2026/07/10 09:37

nirvana

Writeup for private method

ja

2026/07/09 22:52

Rows:

omikuji

Topic: [Mirror] TSG LIVE! CTFReleased: Dec 20, 2025

272 solves
Web
Medium

by

fabon

fabon

Caffe-de-mancy

Hint: The flag is located at /flag on the app server. Carefully read the distributed file app/server.js.

omikuji.tar.gz

Please sign in to submit the flag.

descriptionsolveswriteups