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Every CTF
2026from public repositories

ISSessions Fantasy CTF Spellcraft Exam 2026

1 challenge with 1 published solution between them. CTFtime has no listing for this event at all, so nothing built on CTFtime can show what it was made of. These writeups were found in public repositories instead. Each link is pinned to the commit it was read from.

Where these writeups live

Binary exploitation1

Turn a memory-safety bug in a native binary into control of execution. Usually a stack overflow, a format string, or a heap primitive.

Other 2026 events