diff --git a/Command/SecretsDecryptToLocalCommand.php b/Command/SecretsDecryptToLocalCommand.php
index f76e1d05a..cd8b26cf9 100644
--- a/Command/SecretsDecryptToLocalCommand.php
+++ b/Command/SecretsDecryptToLocalCommand.php
@@ -44,7 +44,7 @@ protected function configure(): void
 
     <info>%command.full_name%</info>
 
-When the option <info>--force</info> is provided, secrets that already exist in the local vault are overriden.
+When the <info>--force</info> option is provided, secrets that already exist in the local vault are overridden.
 
     <info>%command.full_name% --force</info>
 EOF
diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index 92c20d139..1094c14d3 100644
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@@ -1118,7 +1118,8 @@ private function addSerializerSection(ArrayNodeDefinition $rootNode, callable $e
                         ->end()
                         ->arrayNode('default_context')
                             ->normalizeKeys(false)
-                            ->beforeNormalization()
+                            ->useAttributeAsKey('name')
+                            ->validate()
                                 ->ifTrue(fn () => $this->debug && class_exists(JsonParser::class))
                                 ->then(fn (array $v) => $v + [JsonDecode::DETAILED_ERROR_MESSAGES => true])
                             ->end()
diff --git a/DependencyInjection/FrameworkExtension.php b/DependencyInjection/FrameworkExtension.php
index fd57cc95e..1114246cc 100644
--- a/DependencyInjection/FrameworkExtension.php
+++ b/DependencyInjection/FrameworkExtension.php
@@ -1295,6 +1295,10 @@ private function registerAssetMapperConfiguration(array $config, ContainerBuilde
     {
         $loader->load('asset_mapper.php');
 
+        if (!$assetEnabled) {
+            $container->removeDefinition('asset_mapper.asset_package');
+        }
+
         if (!$httpClientEnabled) {
             $container->register('asset_mapper.http_client', HttpClientInterface::class)
                 ->addTag('container.error')
diff --git a/Tests/CacheWarmer/ConfigBuilderCacheWarmerTest.php b/Tests/CacheWarmer/ConfigBuilderCacheWarmerTest.php
index 294a3cd25..66cf6b8d7 100644
--- a/Tests/CacheWarmer/ConfigBuilderCacheWarmerTest.php
+++ b/Tests/CacheWarmer/ConfigBuilderCacheWarmerTest.php
@@ -37,7 +37,7 @@ class ConfigBuilderCacheWarmerTest extends TestCase
 
     protected function setUp(): void
     {
-        $this->varDir = sys_get_temp_dir().'/'.uniqid();
+        $this->varDir = sys_get_temp_dir().'/'.uniqid('', true);
         $fs = new Filesystem();
         $fs->mkdir($this->varDir);
     }
diff --git a/Tests/DependencyInjection/ConfigurationTest.php b/Tests/DependencyInjection/ConfigurationTest.php
index b32d8681b..086d57aea 100644
--- a/Tests/DependencyInjection/ConfigurationTest.php
+++ b/Tests/DependencyInjection/ConfigurationTest.php
@@ -13,6 +13,7 @@
 
 use Doctrine\DBAL\Connection;
 use PHPUnit\Framework\TestCase;
+use Seld\JsonLint\JsonParser;
 use Symfony\Bundle\FrameworkBundle\DependencyInjection\Configuration;
 use Symfony\Bundle\FullStack;
 use Symfony\Component\Cache\Adapter\DoctrineAdapter;
@@ -567,6 +568,72 @@ public function testEnabledLockNeedsResources()
         ]);
     }
 
+    public function testSerializerJsonDetailedErrorMessagesEnabledWhenDefaultContextIsConfigured()
+    {
+        $processor = new Processor();
+        $config = $processor->processConfiguration(new Configuration(true), [
+            [
+                'http_method_override' => false,
+                'handle_all_throwables' => true,
+                'php_errors' => ['log' => true],
+                'serializer' => [
+                    'default_context' => [
+                        'foo' => 'bar',
+                    ],
+                ],
+            ],
+        ]);
+
+        $this->assertSame(['foo' => 'bar', JsonDecode::DETAILED_ERROR_MESSAGES => true], $config['serializer']['default_context'] ?? []);
+    }
+
+    public function testSerializerJsonDetailedErrorMessagesInDefaultContextCanBeDisabled()
+    {
+        $processor = new Processor();
+        $config = $processor->processConfiguration(new Configuration(true), [
+            [
+                'http_method_override' => false,
+                'handle_all_throwables' => true,
+                'php_errors' => ['log' => true],
+                'serializer' => [
+                    'default_context' => [
+                        'foo' => 'bar',
+                        JsonDecode::DETAILED_ERROR_MESSAGES => false,
+                    ],
+                ],
+            ],
+        ]);
+
+        $this->assertSame(['foo' => 'bar', JsonDecode::DETAILED_ERROR_MESSAGES => false], $config['serializer']['default_context'] ?? []);
+    }
+
+    public function testSerializerJsonDetailedErrorMessagesInDefaultContextCanBeDisabledWithSeveralConfigsBeingMerged()
+    {
+        $processor = new Processor();
+        $config = $processor->processConfiguration(new Configuration(true), [
+            [
+                'http_method_override' => false,
+                'handle_all_throwables' => true,
+                'php_errors' => ['log' => true],
+                'serializer' => [
+                    'default_context' => [
+                        'foo' => 'bar',
+                        JsonDecode::DETAILED_ERROR_MESSAGES => false,
+                    ],
+                ],
+            ],
+            [
+                'serializer' => [
+                    'default_context' => [
+                        'foobar' => 'baz',
+                    ],
+                ],
+            ],
+        ]);
+
+        $this->assertSame(['foo' => 'bar', JsonDecode::DETAILED_ERROR_MESSAGES => false, 'foobar' => 'baz'], $config['serializer']['default_context'] ?? []);
+    }
+
     public function testScopedHttpClientsInheritRateLimiterAndRetryFailedConfiguration()
     {
         $processor = new Processor();
diff --git a/Tests/DependencyInjection/Fixtures/php/asset_mapper_without_assets.php b/Tests/DependencyInjection/Fixtures/php/asset_mapper_without_assets.php
new file mode 100644
index 000000000..8a74333b1
--- /dev/null
+++ b/Tests/DependencyInjection/Fixtures/php/asset_mapper_without_assets.php
@@ -0,0 +1,10 @@
+<?php
+
+$container->loadFromExtension('framework', [
+    'annotations' => false,
+    'asset_mapper' => null,
+    'assets' => false,
+    'handle_all_throwables' => true,
+    'http_method_override' => false,
+    'php_errors' => ['log' => true],
+]);
diff --git a/Tests/DependencyInjection/Fixtures/xml/asset_mapper_without_assets.xml b/Tests/DependencyInjection/Fixtures/xml/asset_mapper_without_assets.xml
new file mode 100644
index 000000000..3976b1064
--- /dev/null
+++ b/Tests/DependencyInjection/Fixtures/xml/asset_mapper_without_assets.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" ?>
+<container xmlns="http://symfony.com/schema/dic/services"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xmlns:framework="http://symfony.com/schema/dic/symfony"
+    xsi:schemaLocation="http://symfony.com/schema/dic/services https://symfony.com/schema/dic/services/services-1.0.xsd
+                        http://symfony.com/schema/dic/symfony https://symfony.com/schema/dic/symfony/symfony-1.0.xsd">
+
+    <framework:config http-method-override="false" handle-all-throwables="true">
+        <framework:annotations enabled="false" />
+        <framework:asset-mapper enabled="true" />
+        <framework:assets enabled="false" />
+        <framework:php-errors log="true" />
+    </framework:config>
+</container>
diff --git a/Tests/DependencyInjection/Fixtures/yml/asset_mapper_without_assets.yml b/Tests/DependencyInjection/Fixtures/yml/asset_mapper_without_assets.yml
new file mode 100644
index 000000000..51f302b66
--- /dev/null
+++ b/Tests/DependencyInjection/Fixtures/yml/asset_mapper_without_assets.yml
@@ -0,0 +1,8 @@
+framework:
+    annotations: false
+    asset_mapper: ~
+    assets: false
+    handle_all_throwables: true
+    http_method_override: false
+    php_errors:
+        log: true
diff --git a/Tests/DependencyInjection/FrameworkExtensionTestCase.php b/Tests/DependencyInjection/FrameworkExtensionTestCase.php
index cb97f2a47..ef9fc0f20 100644
--- a/Tests/DependencyInjection/FrameworkExtensionTestCase.php
+++ b/Tests/DependencyInjection/FrameworkExtensionTestCase.php
@@ -2376,6 +2376,16 @@ public function testWebhookWithoutSerializer()
         );
     }
 
+    public function testAssetMapperWithoutAssets()
+    {
+        $container = $this->createContainerFromFile('asset_mapper_without_assets');
+
+        $this->assertTrue($container->has('asset_mapper'));
+        $this->assertFalse($container->has('asset_mapper.asset_package'));
+        $this->assertFalse($container->has('assets.packages'));
+        $this->assertFalse($container->has('assets._default_package'));
+    }
+
     protected function createContainer(array $data = [])
     {
         return new ContainerBuilder(new EnvPlaceholderParameterBag(array_merge([

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