From 44938ec5b61fb6783e4e7e76a7efcecacffcf2f8 Mon Sep 17 00:00:00 2001
From: Neil Twigg <neil@nats.io>
Date: Thu, 25 Jul 2024 16:10:42 +0100
Subject: [PATCH] Fix panic in `remoteServerUpdate`

Signed-off-by: Neil Twigg <neil@nats.io>
---
 server/events.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/server/events.go b/server/events.go
index b6c2a667184..611021b4d50 100644
--- a/server/events.go
+++ b/server/events.go
@@ -1632,7 +1632,7 @@ func (s *Server) remoteServerUpdate(sub *subscription, c *client, _ *Account, su
 		si.BinaryStreamSnapshot(),
 		accountNRG,
 	})
-	if accountNRG != oldInfo.(nodeInfo).accountNRG {
+	if oldInfo == nil || accountNRG != oldInfo.(nodeInfo).accountNRG {
 		// One of the servers we received statsz from changed its mind about
 		// whether or not it supports in-account NRG, so update the groups
 		// with this information.