Vyper: Call stack corruption when passing complex type containing non-base type members as argument

Impact When we pass a multi-dimensional array like 1, 2, 3, 4 as an argument to internal/external functions we get incorrect output. This is due to a stack management issue, because it was assumed that the size of each subtype of an array/struct is 32, which is not always correct. Example code:...

GHSA-4V7V-GQF9-WW2G Vyper: Call stack corruption when passing complex type containing non-base type members as argument

Impact When we pass a multi-dimensional array like 1, 2, 3, 4 as an argument to internal/external functions we get incorrect output. This is due to a stack management issue, because it was assumed that the size of each subtype of an array/struct is 32, which is not always correct. Example code:...

MessagePack-CSharp: Multi-dimensional array formatters allocate from unchecked dimensions

Summary MessagePack-CSharp's multi-dimensional array formatters read dimension lengths directly from the payload and allocate T,, T,,, or T,,, before validating that the dimension product matches the encoded element count. The formatter reads a guarded element array header, but allocation of the...

CVE-2026-48515: Allocation of Resources Without Limits or Throttling

MessagePack for C is a MessagePack serializer for C. Prior to 2.5.301 and 3.1.7, MessagePack-CSharp's multi-dimensional array formatters read dimension lengths directly from the payload and allocate T,, T,,, or T,,, before validating that the dimension product matches the encoded element count. T...