// Hacker Noon · 15 April 2026

I Found 221 Bugs in vLLM. They All Had the Same Root Cause

I audited vLLM's C++ and CUDA code and found 221 places where PyTorch's 64-bit tensor metadata is silently truncated to 32-bit int before being used in GPU buffer allocations. For GGUF model file code paths, an attacker controls the tensor dimensions through the file header, making this a determinis...

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