diff --git a/src/Symfony/Component/HttpKernel/EventListener/RouterListener.php b/src/Symfony/Component/HttpKernel/EventListener/RouterListener.php
index fb4bd60bc3fce..dd6f5bb214d73 100644
--- a/src/Symfony/Component/HttpKernel/EventListener/RouterListener.php
+++ b/src/Symfony/Component/HttpKernel/EventListener/RouterListener.php
@@ -117,7 +117,14 @@ public function onKernelRequest(RequestEvent $event): void
                 $attributes = [];
 
                 foreach ($parameters as $parameter => $value) {
-                    $attribute = $mapping[$parameter] ?? $parameter;
+                    if (!isset($mapping[$parameter])) {
+                        $attribute = $parameter;
+                    } elseif (\is_array($mapping[$parameter])) {
+                        [$attribute, $parameter] = $mapping[$parameter];
+                        $mappedAttributes[$attribute] = '';
+                    } else {
+                        $attribute = $mapping[$parameter];
+                    }
 
                     if (!isset($mappedAttributes[$attribute])) {
                         $attributes[$attribute] = $value;
diff --git a/src/Symfony/Component/HttpKernel/Tests/EventListener/RouterListenerTest.php b/src/Symfony/Component/HttpKernel/Tests/EventListener/RouterListenerTest.php
index d13093db0c55c..ca7bb1b1f6d9e 100644
--- a/src/Symfony/Component/HttpKernel/Tests/EventListener/RouterListenerTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/EventListener/RouterListenerTest.php
@@ -323,5 +323,49 @@ public static function provideRouteMapping(): iterable
                 ],
             ],
         ];
+
+        yield [
+            [
+                'conference' => ['slug' => 'vienna-2024'],
+            ],
+            [
+                'slug' => 'vienna-2024',
+                '_route_mapping' => [
+                    'slug' => [
+                        'conference',
+                        'slug',
+                    ],
+                ],
+            ],
+        ];
+
+        yield [
+            [
+                'article' => [
+                    'id' => 'abc123',
+                    'date' => '2024-04-24',
+                    'slug' => 'symfony-rocks',
+                ],
+            ],
+            [
+                'id' => 'abc123',
+                'date' => '2024-04-24',
+                'slug' => 'symfony-rocks',
+                '_route_mapping' => [
+                    'id' => [
+                        'article',
+                        'id'
+                    ],
+                    'date' => [
+                        'article',
+                        'date',
+                    ],
+                    'slug' => [
+                        'article',
+                        'slug',
+                    ],
+                ],
+            ],
+        ];
     }
 }
diff --git a/src/Symfony/Component/Routing/Route.php b/src/Symfony/Component/Routing/Route.php
index 0364fdd072492..1ed484f71237b 100644
--- a/src/Symfony/Component/Routing/Route.php
+++ b/src/Symfony/Component/Routing/Route.php
@@ -418,15 +418,15 @@ private function extractInlineDefaultsAndRequirements(string $pattern): string
 
         $mapping = $this->getDefault('_route_mapping') ?? [];
 
-        $pattern = preg_replace_callback('#\{(!?)([\w\x80-\xFF]++)(:[\w\x80-\xFF]++)?(<.*?>)?(\?[^\}]*+)?\}#', function ($m) use (&$mapping) {
-            if (isset($m[5][0])) {
-                $this->setDefault($m[2], '?' !== $m[5] ? substr($m[5], 1) : null);
+        $pattern = preg_replace_callback('#\{(!?)([\w\x80-\xFF]++)(:([\w\x80-\xFF]++)(\.[\w\x80-\xFF]++)?)?(<.*?>)?(\?[^\}]*+)?\}#', function ($m) use (&$mapping) {
+            if (isset($m[7][0])) {
+                $this->setDefault($m[2], '?' !== $m[6] ? substr($m[7], 1) : null);
             }
-            if (isset($m[4][0])) {
-                $this->setRequirement($m[2], substr($m[4], 1, -1));
+            if (isset($m[6][0])) {
+                $this->setRequirement($m[2], substr($m[6], 1, -1));
             }
-            if (isset($m[3][0])) {
-                $mapping[$m[2]] = substr($m[3], 1);
+            if (isset($m[4][0])) {
+                $mapping[$m[2]] = isset($m[5][0]) ? [$m[4], substr($m[5], 1)] : $mapping[$m[2]] = [$m[4], $m[2]];
             }
 
             return '{'.$m[1].$m[2].'}';
diff --git a/src/Symfony/Component/Routing/Tests/Matcher/UrlMatcherTest.php b/src/Symfony/Component/Routing/Tests/Matcher/UrlMatcherTest.php
index c426e071f3b96..0c2756e48be49 100644
--- a/src/Symfony/Component/Routing/Tests/Matcher/UrlMatcherTest.php
+++ b/src/Symfony/Component/Routing/Tests/Matcher/UrlMatcherTest.php
@@ -1011,7 +1011,30 @@ public function testMapping()
             '_route' => 'a',
             'slug' => 'vienna-2024',
             '_route_mapping' => [
-                'slug' => 'conference',
+                'slug' => [
+                    'conference',
+                    'slug',
+                ],
+            ],
+        ];
+        $this->assertEquals($expected, $matcher->match('/conference/vienna-2024'));
+    }
+
+    public function testMappingwithAlias()
+    {
+        $collection = new RouteCollection();
+        $collection->add('a', new Route('/conference/{conferenceSlug:conference.slug}'));
+
+        $matcher = $this->getUrlMatcher($collection);
+
+        $expected = [
+            '_route' => 'a',
+            'conferenceSlug' => 'vienna-2024',
+            '_route_mapping' => [
+                'conferenceSlug' => [
+                    'conference',
+                    'slug',
+                ],
             ],
         ];
         $this->assertEquals($expected, $matcher->match('/conference/vienna-2024'));