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Nick Chapsas March 20, 2026 8m

Massive AutoMapper Vulnerability in .NET

Summary

The transcript discusses a potential vulnerability in AutoMapper related to recursive mapping and nested object structures that could potentially cause server crashes due to stack overflow exceptions. The key reference is Jimmy, the creator of AutoMapper, who highlighted an issue with unlimited nesting depth in object mapping. The practical takeaway is that while the problem exists, it is not as severe as initially presented, and developers can mitigate risks by implementing depth validation or setting reasonable maximum nesting levels in their mapping configurations.

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