diff --git a/GFramework.Godot.Tests/Config/GodotYamlConfigLoaderTests.cs b/GFramework.Godot.Tests/Config/GodotYamlConfigLoaderTests.cs
index 6aa7a8e2..bef0737a 100644
--- a/GFramework.Godot.Tests/Config/GodotYamlConfigLoaderTests.cs
+++ b/GFramework.Godot.Tests/Config/GodotYamlConfigLoaderTests.cs
@@ -6,9 +6,7 @@ using System.Reflection;
 using System.Runtime.CompilerServices;
 using System.Threading.Tasks;
 using GFramework.Game.Abstractions.Config;
-using GFramework.Game.Config;
 using GFramework.Godot.Config;
-using NUnit.Framework;
 
 namespace GFramework.Godot.Tests.Config;
 
@@ -18,6 +16,10 @@ namespace GFramework.Godot.Tests.Config;
 [TestFixture]
 public sealed class GodotYamlConfigLoaderTests
 {
+    private string _resourceRoot = null!;
+    private string _testRoot = null!;
+    private string _userRoot = null!;
+
     /// <summary>
     ///     为每个测试准备独立的资源根目录与用户目录。
     /// </summary>
@@ -46,10 +48,6 @@ public sealed class GodotYamlConfigLoaderTests
         }
     }
 
-    private string _resourceRoot = null!;
-    private string _testRoot = null!;
-    private string _userRoot = null!;
-
     /// <summary>
     ///     验证导出态会把注册过的 YAML 与 schema 文本同步到运行时缓存，再交给底层加载器。
     /// </summary>
@@ -205,10 +203,12 @@ public sealed class GodotYamlConfigLoaderTests
     /// <summary>
     ///     验证加载器自身会拒绝可能逃逸缓存根目录的非法配置目录路径，即使调用方绕过了公开构造约束。
     /// </summary>
-    [Test]
-    public void LoadAsync_Should_Reject_Invalid_Config_Relative_Path_When_Metadata_Is_Corrupted()
+    [TestCase("../outside")]
+    [TestCase("schemas:bad/monster")]
+    public void LoadAsync_Should_Reject_Invalid_Config_Relative_Path_When_Metadata_Is_Corrupted(
+        string configRelativePath)
     {
-        var corruptedSource = CreateUnsafeTableSource("monster", "../outside");
+        var corruptedSource = CreateUnsafeTableSource("monster", configRelativePath);
         var loader = CreateLoader(
             isEditor: false,
             tableSources: [corruptedSource],
@@ -223,8 +223,10 @@ public sealed class GodotYamlConfigLoaderTests
     /// <summary>
     ///     验证加载器自身会拒绝可能逃逸缓存根目录的非法 schema 路径，即使调用方绕过了公开构造约束。
     /// </summary>
-    [Test]
-    public void LoadAsync_Should_Reject_Invalid_Schema_Relative_Path_When_Metadata_Is_Corrupted()
+    [TestCase("../schemas/monster.schema.json")]
+    [TestCase("schemas:bad/monster.schema.json")]
+    public void LoadAsync_Should_Reject_Invalid_Schema_Relative_Path_When_Metadata_Is_Corrupted(
+        string schemaRelativePath)
     {
         WriteFile(
             _resourceRoot,
@@ -235,7 +237,7 @@ public sealed class GodotYamlConfigLoaderTests
             hp: 10
             """);
 
-        var corruptedSource = CreateUnsafeTableSource("monster", "monster", "../schemas/monster.schema.json");
+        var corruptedSource = CreateUnsafeTableSource("monster", "monster", schemaRelativePath);
         var loader = CreateLoader(
             isEditor: false,
             tableSources: [corruptedSource],
diff --git a/GFramework.Godot.Tests/Config/GodotYamlConfigTableSourceTests.cs b/GFramework.Godot.Tests/Config/GodotYamlConfigTableSourceTests.cs
index 5e4998ce..ccb8ab6a 100644
--- a/GFramework.Godot.Tests/Config/GodotYamlConfigTableSourceTests.cs
+++ b/GFramework.Godot.Tests/Config/GodotYamlConfigTableSourceTests.cs
@@ -1,6 +1,5 @@
 using System;
 using GFramework.Godot.Config;
-using NUnit.Framework;
 
 namespace GFramework.Godot.Tests.Config;
 
@@ -27,6 +26,8 @@ public sealed class GodotYamlConfigTableSourceTests
     [TestCase(@"C:\monster")]
     [TestCase("res://monster")]
     [TestCase("user://monster")]
+    [TestCase("schemas:bad/monster")]
+    [TestCase(@"schemas:bad\monster")]
     public void Constructor_Should_Throw_When_Config_Relative_Path_Is_Not_Safe(string configRelativePath)
     {
         var exception = Assert.Throws<ArgumentException>(() =>
@@ -52,6 +53,8 @@ public sealed class GodotYamlConfigTableSourceTests
     [TestCase(@"C:\schemas\monster.schema.json")]
     [TestCase("res://schemas/monster.schema.json")]
     [TestCase("user://schemas/monster.schema.json")]
+    [TestCase("schemas:bad/monster.schema.json")]
+    [TestCase(@"schemas:bad\monster.schema.json")]
     public void Constructor_Should_Throw_When_Schema_Relative_Path_Is_Not_Safe(string schemaRelativePath)
     {
         var exception = Assert.Throws<ArgumentException>(() =>
diff --git a/GFramework.Godot/Config/GodotYamlConfigLoader.cs b/GFramework.Godot/Config/GodotYamlConfigLoader.cs
index e4cf2c09..0e32867a 100644
--- a/GFramework.Godot/Config/GodotYamlConfigLoader.cs
+++ b/GFramework.Godot/Config/GodotYamlConfigLoader.cs
@@ -3,7 +3,6 @@ using GFramework.Core.Abstractions.Events;
 using GFramework.Game.Abstractions.Config;
 using GFramework.Game.Config;
 using GFramework.Godot.Extensions;
-using FileAccess = Godot.FileAccess;
 
 namespace GFramework.Godot.Config;
 
@@ -440,6 +439,14 @@ public sealed class GodotYamlConfigLoader : IConfigLoader
             throw new ArgumentException("Relative path must be an unrooted path.", nameof(relativePath));
         }
 
+        // Reject ':' in later segments as well so Windows-invalid names and ADS-like syntax never reach file APIs.
+        if (normalizedPath.Contains(':', StringComparison.Ordinal))
+        {
+            throw new ArgumentException(
+                "Relative path must not contain ':' characters.",
+                nameof(relativePath));
+        }
+
         var segments = normalizedPath.Split('/', StringSplitOptions.RemoveEmptyEntries);
         if (segments.Any(static segment => segment is "." or ".."))
         {
diff --git a/GFramework.Godot/Config/GodotYamlConfigTableSource.cs b/GFramework.Godot/Config/GodotYamlConfigTableSource.cs
index 4d28826a..c851751d 100644
--- a/GFramework.Godot/Config/GodotYamlConfigTableSource.cs
+++ b/GFramework.Godot/Config/GodotYamlConfigTableSource.cs
@@ -13,11 +13,12 @@ public sealed class GodotYamlConfigTableSource
     /// <param name="tableName">运行时表名称。</param>
     /// <param name="configRelativePath">
     ///     相对配置根目录的 YAML 目录。
-    ///     该路径必须保持为无根相对路径，且不能包含 <c>.</c>、<c>..</c>、<c>res://</c>、<c>user://</c> 或磁盘根路径前缀。
+    ///     该路径必须保持为无根相对路径，且不能包含 <c>.</c>、<c>..</c>、<c>res://</c>、<c>user://</c>、<c>:</c>
+    ///     或磁盘根路径前缀。
     /// </param>
     /// <param name="schemaRelativePath">
     ///     相对配置根目录的 schema 文件路径；未启用 schema 时为空。
-    ///     如果提供，同样必须保持为无根相对路径，且不能包含 <c>.</c>、<c>..</c> 或任何绝对路径前缀。
+    ///     如果提供，同样必须保持为无根相对路径，且不能包含 <c>.</c>、<c>..</c>、<c>:</c> 或任何绝对路径前缀。
     /// </param>
     /// <exception cref="ArgumentException">
     ///     <paramref name="tableName" />、<paramref name="configRelativePath" /> 或 <paramref name="schemaRelativePath" />
@@ -72,13 +73,13 @@ public sealed class GodotYamlConfigTableSource
 
     /// <summary>
     ///     获取相对配置根目录的 YAML 目录路径。
-    ///     该值始终保持为无根相对路径，不会包含 <c>.</c> 或 <c>..</c> 段。
+    ///     该值始终保持为无根相对路径，不会包含 <c>.</c>、<c>..</c> 或 <c>:</c> 段。
     /// </summary>
     public string ConfigRelativePath { get; }
 
     /// <summary>
     ///     获取相对配置根目录的 schema 文件路径；未启用 schema 校验时为空。
-    ///     该值在非空时始终保持为无根相对路径，不会包含 <c>.</c> 或 <c>..</c> 段。
+    ///     该值在非空时始终保持为无根相对路径，不会包含 <c>.</c>、<c>..</c> 或 <c>:</c> 段。
     /// </summary>
     public string? SchemaRelativePath { get; }
 
@@ -94,6 +95,11 @@ public sealed class GodotYamlConfigTableSource
             return false;
         }
 
+        if (normalizedPath.Contains(':', StringComparison.Ordinal))
+        {
+            return false;
+        }
+
         foreach (var segment in normalizedPath.Split('/', StringSplitOptions.RemoveEmptyEntries))
         {
             if (segment is "." or "..")