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Security: add server-side permission checks to NPC packet handlers #40
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Summary
Added server-side permission checks across NPC packet handlers to prevent unauthorized manipulation. Previously,
NpcStatecould allow arbitrary code execution on the server if an NPC was presentChanges
Added Op/Creative check to
ServerHandlerNpcState,ServerHandlerNpcList, andServerHandlerNpcToolAdded isRiding check to
ServerHandlerNpcJumpSecurity impact
Severity: High for the
ServerHandlerNpcState(prevents potential script injection)Other fixes: lowered-risk integrity/permission issues