diff --git a/app/code/Magento/Config/Console/Command/ConfigShowCommand.php b/app/code/Magento/Config/Console/Command/ConfigShowCommand.php
index 445fd8e67937e..0c6b65fb444a0 100644
--- a/app/code/Magento/Config/Console/Command/ConfigShowCommand.php
+++ b/app/code/Magento/Config/Console/Command/ConfigShowCommand.php
@@ -172,13 +172,11 @@ protected function execute(InputInterface $input, OutputInterface $output)
 
             $configValue = $this->emulatedAreaProcessor->process(function () {
                 $this->scopeValidator->isValid($this->scope, $this->scopeCode);
+                $configPath = $this->pathResolver->resolve($this->inputPath, $this->scope, $this->scopeCode);
                 if ($this->inputPath) {
                     $pathValidator = $this->pathValidatorFactory->create();
-                    $pathValidator->validate($this->inputPath);
+                    $pathValidator->validate($configPath);
                 }
-
-                $configPath = $this->pathResolver->resolve($this->inputPath, $this->scope, $this->scopeCode);
-
                 return $this->configSource->get($configPath);
             });
 
diff --git a/app/code/Magento/Config/Model/Config/PathValidator.php b/app/code/Magento/Config/Model/Config/PathValidator.php
index d0d1d46303b8e..61a4bf6551fcb 100644
--- a/app/code/Magento/Config/Model/Config/PathValidator.php
+++ b/app/code/Magento/Config/Model/Config/PathValidator.php
@@ -6,7 +6,7 @@
 
 namespace Magento\Config\Model\Config;
 
-use Magento\Config\Model\Config\Structure\Element\Field;
+use Magento\Config\App\Config\Source\RuntimeConfigSource;
 use Magento\Framework\Exception\ValidatorException;
 
 /**
@@ -17,22 +17,23 @@
 class PathValidator
 {
     /**
-     * The config structure.
+     * Source of configurations.
      *
-     * @var Structure
+     * @var RuntimeConfigSource
      */
-    private $structure;
+    private $configSource;
 
     /**
-     * @param Structure $structure The config structure
+     * @param RuntimeConfigSource $configSource Source of configurations
      */
-    public function __construct(Structure $structure)
-    {
-        $this->structure = $structure;
+    public function __construct(
+        RuntimeConfigSource $configSource
+    ) {
+        $this->configSource = $configSource;
     }
 
     /**
-     * Checks whether the config path present in configuration structure.
+     * Checks whether the config path present in configuration.
      *
      * @param string $path The config path
      * @return true The result of validation
@@ -41,14 +42,7 @@ public function __construct(Structure $structure)
      */
     public function validate($path)
     {
-        $element = $this->structure->getElementByConfigPath($path);
-        if ($element instanceof Field && $element->getConfigPath()) {
-            $path = $element->getConfigPath();
-        }
-
-        $allPaths = $this->structure->getFieldPaths();
-
-        if (!array_key_exists($path, $allPaths)) {
+        if (is_null($this->configSource->get($path))) {
             throw new ValidatorException(__('The "%1" path doesn\'t exist. Verify and try again.', $path));
         }
 
diff --git a/app/code/Magento/Config/Test/Unit/Model/Config/PathValidatorTest.php b/app/code/Magento/Config/Test/Unit/Model/Config/PathValidatorTest.php
index d7152f47f296c..88d29f2c9a098 100644
--- a/app/code/Magento/Config/Test/Unit/Model/Config/PathValidatorTest.php
+++ b/app/code/Magento/Config/Test/Unit/Model/Config/PathValidatorTest.php
@@ -8,7 +8,7 @@
 namespace Magento\Config\Test\Unit\Model\Config;
 
 use Magento\Config\Model\Config\PathValidator;
-use Magento\Config\Model\Config\Structure;
+use Magento\Config\App\Config\Source\RuntimeConfigSource;
 use PHPUnit\Framework\MockObject\MockObject as Mock;
 use PHPUnit\Framework\TestCase;
 
@@ -25,33 +25,29 @@ class PathValidatorTest extends TestCase
     private $model;
 
     /**
-     * @var Structure|Mock
+     * @var RuntimeConfigSource|Mock
      */
-    private $structureMock;
+    private $configMock;
 
     /**
      * @inheritdoc
      */
     protected function setUp(): void
     {
-        $this->structureMock = $this->getMockBuilder(Structure::class)
+        $this->configMock = $this->getMockBuilder(RuntimeConfigSource::class)
             ->disableOriginalConstructor()
             ->getMock();
 
         $this->model = new PathValidator(
-            $this->structureMock
+            $this->configMock
         );
     }
 
     public function testValidate()
     {
-        $this->structureMock->expects($this->once())
-            ->method('getFieldPaths')
-            ->willReturn([
-                'test/test/test' => [
-                    'test/test/test'
-                ]
-            ]);
+        $this->configMock->expects($this->once())
+            ->method('get')
+            ->willReturn('test');
 
         $this->assertTrue($this->model->validate('test/test/test'));
     }
@@ -60,9 +56,9 @@ public function testValidateWithException()
     {
         $this->expectException('Magento\Framework\Exception\ValidatorException');
         $this->expectExceptionMessage('The "test/test/test" path doesn\'t exist. Verify and try again.');
-        $this->structureMock->expects($this->once())
-            ->method('getFieldPaths')
-            ->willReturn([]);
+        $this->configMock->expects($this->once())
+            ->method('get')
+            ->willReturn(null);
 
         $this->assertTrue($this->model->validate('test/test/test'));
     }