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Medium 5.3
Nerdbank.MessagePack has Inefficient CPU Computation
### Impact Applications that call `OptionalConverters.WithExpandoObjectConverter` and deserialize untrusted data are open to a vulnerability by which an attacker can exploit a `O(n²)` algorithm to burn an inordinate amount of CPU effort by adding a great many…
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Medium 5.3
Nerdbank.MessagePack has a memory amplification DoS in collection deserialization
Nerdbank.MessagePack deserializers for many collection-shaped types trusted the element count declared in MessagePack array and map headers when allocating destination storage. A crafted payload could therefore force large arrays, pooled buffers, dictionaries…
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High 7.5
Nerdbank.MessagePack: Attacker-controlled stackalloc in DateTime decoding causes process-terminating StackOverflowException
Nerdbank.MessagePack is a NativeAOT-compatible MessagePack serialization library. Prior to 1.1.62, Nerdbank.MessagePack contains an uncontrolled stack allocation vulnerability in DateTime decoding. A malicious MessagePack payload can declare an oversized time…