diff --git a/src/Nethermind/Nethermind.Config.Test/ConfigProvider_FindIncorrectSettings_Tests.cs b/src/Nethermind/Nethermind.Config.Test/ConfigProvider_FindIncorrectSettings_Tests.cs
index ea8fc1d9a4d..63d06109011 100644
--- a/src/Nethermind/Nethermind.Config.Test/ConfigProvider_FindIncorrectSettings_Tests.cs
+++ b/src/Nethermind/Nethermind.Config.Test/ConfigProvider_FindIncorrectSettings_Tests.cs
@@ -46,7 +46,6 @@ public void NoCategorySettings()
             { "NETHERMIND_CLI_SWITCH_LOCAL", "http://localhost:80" },
             { "NETHERMIND_MONITORING_JOB", "nethermindJob" },
             { "NETHERMIND_MONITORING_GROUP", "nethermindGroup" },
-            { "NETHERMIND_CORS_ORIGINS", "*" },
             { "NETHERMIND_CONFIG", "test2.json" },
             { "NETHERMIND_XYZ", "xyz" },    // not existing, should get error
             { "QWER", "qwerty" }    // not Nethermind setting, no error
diff --git a/src/Nethermind/Nethermind.Config/INoCategoryConfig.cs b/src/Nethermind/Nethermind.Config/INoCategoryConfig.cs
index 2075eb5c5ab..e50dcb39cd1 100644
--- a/src/Nethermind/Nethermind.Config/INoCategoryConfig.cs
+++ b/src/Nethermind/Nethermind.Config/INoCategoryConfig.cs
@@ -15,9 +15,6 @@ public interface INoCategoryConfig : IConfig
     [ConfigItem(Description = "Sets the default group name for metrics monitoring.", EnvironmentVariable = "NETHERMIND_MONITORING_GROUP")]
     public string MonitoringGroup { get; set; }
 
-    [ConfigItem(Description = "Defines CORS origins for JSON RPC.", DefaultValue = "*", EnvironmentVariable = "NETHERMIND_CORS_ORIGINS")]
-    public string CorsOrigins { get; set; }
-
     [ConfigItem(Description = "Defines host value for CLI function \"switchLocal\".", DefaultValue = "http://localhost", EnvironmentVariable = "NETHERMIND_CLI_SWITCH_LOCAL")]
     public string CliSwitchLocal { get; set; }
 }
diff --git a/src/Nethermind/Nethermind.Config/NoCategoryConfig.cs b/src/Nethermind/Nethermind.Config/NoCategoryConfig.cs
index 56d20af3d2b..c3f15bb98a0 100644
--- a/src/Nethermind/Nethermind.Config/NoCategoryConfig.cs
+++ b/src/Nethermind/Nethermind.Config/NoCategoryConfig.cs
@@ -8,6 +8,5 @@ public class NoCategoryConfig : INoCategoryConfig
     public string Config { get; set; } = null;
     public string MonitoringJob { get; set; }
     public string MonitoringGroup { get; set; }
-    public string CorsOrigins { get; set; }
     public string CliSwitchLocal { get; set; }
 }
diff --git a/src/Nethermind/Nethermind.JsonRpc/IJsonRpcConfig.cs b/src/Nethermind/Nethermind.JsonRpc/IJsonRpcConfig.cs
index 301b21f850e..a202fcf5986 100644
--- a/src/Nethermind/Nethermind.JsonRpc/IJsonRpcConfig.cs
+++ b/src/Nethermind/Nethermind.JsonRpc/IJsonRpcConfig.cs
@@ -166,4 +166,7 @@ public interface IJsonRpcConfig : IConfig
 
     [ConfigItem(Description = "The error margin used in the `eth_estimateGas` JSON-RPC method, in basis points.", DefaultValue = "150")]
     int EstimateErrorMargin { get; set; }
+
+    [ConfigItem(Description = "The JSON-RPC server CORS origins.", DefaultValue = "*")]
+    string[] CorsOrigins { get; set; }
 }
diff --git a/src/Nethermind/Nethermind.JsonRpc/JsonRpcConfig.cs b/src/Nethermind/Nethermind.JsonRpc/JsonRpcConfig.cs
index 26d3d32760e..99260c72927 100644
--- a/src/Nethermind/Nethermind.JsonRpc/JsonRpcConfig.cs
+++ b/src/Nethermind/Nethermind.JsonRpc/JsonRpcConfig.cs
@@ -2,6 +2,7 @@
 // SPDX-License-Identifier: LGPL-3.0-only
 
 using System;
+using System.Collections.Generic;
 using System.Linq;
 using Nethermind.Core.Extensions;
 using Nethermind.JsonRpc.Modules;
@@ -57,6 +58,7 @@ public int WebSocketsPort
         public long? MaxBatchResponseBodySize { get; set; } = 32.MiB();
         public long? MaxSimulateBlocksCap { get; set; } = 256;
         public int EstimateErrorMargin { get; set; } = 150;
+        public string[] CorsOrigins { get; set; } = ["*"];
     };
 };
 
diff --git a/src/Nethermind/Nethermind.Runner/JsonRpc/Startup.cs b/src/Nethermind/Nethermind.Runner/JsonRpc/Startup.cs
index 7e970cda02d..c69e0992dc3 100644
--- a/src/Nethermind/Nethermind.Runner/JsonRpc/Startup.cs
+++ b/src/Nethermind/Nethermind.Runner/JsonRpc/Startup.cs
@@ -22,7 +22,6 @@
 using Nethermind.Api;
 using Nethermind.Config;
 using Nethermind.Core.Authentication;
-using Nethermind.Core.Extensions;
 using Nethermind.Core.Resettables;
 using Nethermind.HealthChecks;
 using Nethermind.JsonRpc;
@@ -57,9 +56,10 @@ public void ConfigureServices(IServiceCollection services)
         });
         Bootstrap.Instance.RegisterJsonRpcServices(services);
 
-        string corsOrigins = Environment.GetEnvironmentVariable("NETHERMIND_CORS_ORIGINS") ?? "*";
-        services.AddCors(c => c.AddPolicy("Cors",
-            p => p.AllowAnyMethod().AllowAnyHeader().WithOrigins(corsOrigins)));
+        services.AddCors(options => options.AddDefaultPolicy(builder => builder
+            .AllowAnyMethod()
+            .AllowAnyHeader()
+            .WithOrigins(jsonRpcConfig.CorsOrigins)));
 
         services.AddResponseCompression(options =>
         {
@@ -79,8 +79,8 @@ public void Configure(IApplicationBuilder app, IWebHostEnvironment env, IJsonRpc
             app.UseDeveloperExceptionPage();
         }
 
-        app.UseCors("Cors");
         app.UseRouting();
+        app.UseCors();
         app.UseResponseCompression();
 
         IConfigProvider? configProvider = app.ApplicationServices.GetService<IConfigProvider>();