diff --git a/http-service/src/main/java/net/runelite/http/service/account/AccountService.java b/http-service/src/main/java/net/runelite/http/service/account/AccountService.java
index 7d3108f..e49ba1d 100644
--- a/http-service/src/main/java/net/runelite/http/service/account/AccountService.java
+++ b/http-service/src/main/java/net/runelite/http/service/account/AccountService.java
@@ -50,10 +50,12 @@
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.HttpStatus;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.server.ResponseStatusException;
 import org.sql2o.Connection;
 import org.sql2o.Sql2o;
 import org.sql2o.Sql2oException;
@@ -97,6 +99,7 @@ public class AccountService
 	private final String oauthClientSecret;
 	private final String oauthCallback;
 	private final AuthFilter auth;
+	private final String redirHost;
 
 	@Autowired
 	public AccountService(
@@ -106,13 +109,15 @@ public AccountService(
 		@Value("${oauth.callback}") String oauthCallback,
 		@Value("${oauth.callback-snapshot}") String oauthSnapshotCallback,
 		@Value("#{servletContext.contextPath}") String contextPath,
-		AuthFilter auth
+		AuthFilter auth,
+		@Value("${oauth.redir-host}") String redirHost
 	)
 	{
 		this.sql2o = sql2o;
 		this.oauthClientId = oauthClientId;
 		this.oauthClientSecret = oauthClientSecret;
 		this.auth = auth;
+		this.redirHost = redirHost;
 
 		this.oauthCallback = contextPath.toLowerCase().contains("snapshot") ? oauthSnapshotCallback : oauthCallback;
 
@@ -243,6 +248,12 @@ public Object callback(
 				.addQueryParameter("username", userInfo.getEmail())
 				.addQueryParameter("sessionId", uuid.toString())
 				.build();
+
+			if (!redir.host().equals(redirHost))
+			{
+				logger.error("oauth state redirect to bad url/host {}/{}", state.getRedirectUrl(), redir.host());
+				throw new ResponseStatusException(HttpStatus.BAD_REQUEST);
+			}
 		}
 		else
 		{
diff --git a/http-service/src/main/resources/application.yaml b/http-service/src/main/resources/application.yaml
index ffafb36..2cdc33b 100644
--- a/http-service/src/main/resources/application.yaml
+++ b/http-service/src/main/resources/application.yaml
@@ -24,6 +24,7 @@ oauth:
   client-secret:
   callback: https://api.runelite.net/oauth/
   callback-snapshot: https://api.runelite.net/oauth-snapshot/
+  redir-host: runelite.net
 
 # Redis client
 redis: