0x49 S49PacketUpdateEntityNBT

Updates the NBT data of an entity (used for command block minecarts, spawned entities with custom NBT).

Clientbound (Server → Client) · PLAY · net/minecraft/network/play/server/S49PacketUpdateEntityNBT.java
entitynbt

Fields

FieldTypeDescription
entityIdVarIntEntity ID
tagCompoundNBTTagCompoundUpdated NBT data

Wire Encoding

FieldTypeNotes
Entity IDVarInt
NBT DataNBT Tag

MCP References

MCPNetHandlerPlayClient.handleUpdateEntityNBT()

Handler Interface

HNDINetHandlerPlayClient

implementation Implementation Cases

NBTExploit

Read entity NBT data (command block minecarts).

Vanilla hook: EventReceivePacket
CommandBlock

Read entity NBT data (command block minecarts).

Vanilla hook: EventReceivePacket
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