diff --git a/src/Symfony/Component/Serializer/Normalizer/AbstractObjectNormalizer.php b/src/Symfony/Component/Serializer/Normalizer/AbstractObjectNormalizer.php
index aad68f7ba0476..1860425f9f3b5 100644
--- a/src/Symfony/Component/Serializer/Normalizer/AbstractObjectNormalizer.php
+++ b/src/Symfony/Component/Serializer/Normalizer/AbstractObjectNormalizer.php
@@ -569,7 +569,7 @@ private function validateAndDenormalizeLegacy(array $types, string $currentClass
                     return (float) $data;
                 }
 
-                if (LegacyType::BUILTIN_TYPE_BOOL === $builtinType && \is_string($data) && ($context[self::FILTER_BOOL] ?? false)) {
+                if (LegacyType::BUILTIN_TYPE_BOOL === $builtinType && (\is_string($data) || \is_int($data)) && ($context[self::FILTER_BOOL] ?? false)) {
                     return filter_var($data, \FILTER_VALIDATE_BOOL, \FILTER_NULL_ON_FAILURE);
                 }
 
@@ -854,7 +854,7 @@ private function validateAndDenormalize(Type $type, string $currentClass, string
                     return (float) $data;
                 }
 
-                if (TypeIdentifier::BOOL === $typeIdentifier && \is_string($data) && ($context[self::FILTER_BOOL] ?? false)) {
+                if (TypeIdentifier::BOOL === $typeIdentifier && (\is_string($data) || \is_int($data)) && ($context[self::FILTER_BOOL] ?? false)) {
                     return filter_var($data, \FILTER_VALIDATE_BOOL, \FILTER_NULL_ON_FAILURE);
                 }
 
diff --git a/src/Symfony/Component/Serializer/Tests/Normalizer/AbstractObjectNormalizerTest.php b/src/Symfony/Component/Serializer/Tests/Normalizer/AbstractObjectNormalizerTest.php
index b4f5c103ca7d1..27f3c2084999d 100644
--- a/src/Symfony/Component/Serializer/Tests/Normalizer/AbstractObjectNormalizerTest.php
+++ b/src/Symfony/Component/Serializer/Tests/Normalizer/AbstractObjectNormalizerTest.php
@@ -1216,15 +1216,34 @@ public static function provideDenormalizeWithFilterBoolData(): array
     {
         return [
             [['foo' => 'true'], true],
+            [['foo' => 'True'], true],
+            [['foo' => 'TRUE'], true],
             [['foo' => '1'], true],
+            [['foo' => 1], true],
             [['foo' => 'yes'], true],
+            [['foo' => 'Yes'], true],
+            [['foo' => 'YES'], true],
+            [['foo' => 'on'], true],
+            [['foo' => 'On'], true],
+            [['foo' => 'ON'], true],
             [['foo' => 'false'], false],
+            [['foo' => 'False'], false],
+            [['foo' => 'FALSE'], false],
             [['foo' => '0'], false],
+            [['foo' => 0], false],
             [['foo' => 'no'], false],
+            [['foo' => 'No'], false],
+            [['foo' => 'NO'], false],
+            [['foo' => 'off'], false],
+            [['foo' => 'Off'], false],
+            [['foo' => 'OFF'], false],
             [['foo' => ''], false],
             [['foo' => null], null],
             [['foo' => 'null'], null],
             [['foo' => 'something'], null],
+            [['foo' => 'foo'], null],
+            [['foo' => 1234567890], null],
+            [['foo' => -1234567890], null],
         ];
     }
 
@@ -1253,10 +1272,7 @@ protected function isAllowedAttribute($classOrObject, string $attribute, ?string
 
     public function testTemplateTypeWhenAnObjectIsPassedToDenormalize()
     {
-        $normalizer = new class (
-            classMetadataFactory: new ClassMetadataFactory(new AttributeLoader()),
-            propertyTypeExtractor: new PropertyInfoExtractor(typeExtractors: [new PhpStanExtractor(), new ReflectionExtractor()])
-        ) extends AbstractObjectNormalizerDummy {
+        $normalizer = new class(classMetadataFactory: new ClassMetadataFactory(new AttributeLoader()), propertyTypeExtractor: new PropertyInfoExtractor(typeExtractors: [new PhpStanExtractor(), new ReflectionExtractor()])) extends AbstractObjectNormalizerDummy {
             protected function isAllowedAttribute($classOrObject, string $attribute, ?string $format = null, array $context = []): bool
             {
                 return true;
@@ -1279,10 +1295,7 @@ public function testDenormalizeTemplateType()
             $this->markTestSkipped('The PropertyInfo component before Symfony 7.1 does not support template types.');
         }
 
-        $normalizer = new class (
-            classMetadataFactory: new ClassMetadataFactory(new AttributeLoader()),
-            propertyTypeExtractor: new PropertyInfoExtractor(typeExtractors: [new PhpStanExtractor(), new ReflectionExtractor()])
-        ) extends AbstractObjectNormalizerDummy {
+        $normalizer = new class(classMetadataFactory: new ClassMetadataFactory(new AttributeLoader()), propertyTypeExtractor: new PropertyInfoExtractor(typeExtractors: [new PhpStanExtractor(), new ReflectionExtractor()])) extends AbstractObjectNormalizerDummy {
             protected function isAllowedAttribute($classOrObject, string $attribute, ?string $format = null, array $context = []): bool
             {
                 return true;
@@ -1587,7 +1600,7 @@ class TruePropertyDummy
 
 class BoolPropertyDummy
 {
-    /** @var null|bool */
+    /** @var bool|null */
     public $foo;
 }