Check UTF8 string

neo-project · Aug 16, 2023 · 93b4126 · 93b4126
1 parent b812394
commit 93b4126
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/Neo/SmartContract/ApplicationEngine.Runtime.cs b/src/Neo/SmartContract/ApplicationEngine.Runtime.cs
@@ -428,7 +428,8 @@ private static bool CheckItemType(StackItem item, ContractParameterType type)
                     return aType == StackItemType.Integer;
                 case ContractParameterType.ByteArray:
                 case ContractParameterType.String:
-                    return aType is StackItemType.Any or StackItemType.ByteString or StackItemType.Buffer;
+                    return aType is StackItemType.Any or StackItemType.ByteString or StackItemType.Buffer &&
+                        Utility.StrictUTF8.GetString(item.GetSpan()) is not null; // Prevent any non-UTF8 string
                 case ContractParameterType.Hash160:
                     if (aType == StackItemType.Any) return true;
                     if (aType != StackItemType.ByteString && aType != StackItemType.Buffer) return false;