diff --git a/src/Symfony/Component/TypeInfo/Tests/Type/ArrayShapeTypeTest.php b/src/Symfony/Component/TypeInfo/Tests/Type/ArrayShapeTypeTest.php
index e54c832afd2e0..d68b7bcfe544b 100644
--- a/src/Symfony/Component/TypeInfo/Tests/Type/ArrayShapeTypeTest.php
+++ b/src/Symfony/Component/TypeInfo/Tests/Type/ArrayShapeTypeTest.php
@@ -12,11 +12,37 @@
 namespace Symfony\Component\TypeInfo\Tests\Type;
 
 use PHPUnit\Framework\TestCase;
+use Symfony\Component\TypeInfo\Exception\InvalidArgumentException;
 use Symfony\Component\TypeInfo\Type;
 use Symfony\Component\TypeInfo\Type\ArrayShapeType;
 
 class ArrayShapeTypeTest extends TestCase
 {
+    /**
+     * @dataProvider cannotConstructWithInvalidExtraDataProvider
+     */
+    public function testCannotConstructWithInvalidExtra(string $expectedMessage, ?Type $extraKeyType, ?Type $extraValueType)
+    {
+        $this->expectException(InvalidArgumentException::class);
+        $this->expectExceptionMessage($expectedMessage);
+
+        new ArrayShapeType(
+            shape: [1 => ['type' => Type::bool(), 'optional' => false]],
+            extraKeyType: $extraKeyType,
+            extraValueType: $extraValueType,
+        );
+    }
+
+    /**
+     * @return iterable<array{0: string, 1: ?Type, 2: ?Type}>
+     */
+    public static function cannotConstructWithInvalidExtraDataProvider(): iterable
+    {
+        yield ['You must provide as value for "$extraValueType" when "$extraKeyType" is provided.', Type::string(), null];
+        yield ['You must provide as value for "$extraKeyType" when "$extraValueType" is provided.', null, Type::string()];
+        yield ['"float" is not a valid array key type.', Type::float(), Type::string()];
+    }
+
     public function testGetCollectionKeyType()
     {
         $type = new ArrayShapeType([
@@ -76,6 +102,17 @@ public function testAccepts()
 
         $this->assertTrue($type->accepts(['foo' => true]));
         $this->assertTrue($type->accepts(['foo' => true, 'bar' => 'string']));
+
+        $type = new ArrayShapeType(
+            shape: ['foo' => ['type' => Type::bool()]],
+            extraKeyType: Type::string(),
+            extraValueType: Type::string(),
+        );
+
+        $this->assertTrue($type->accepts(['foo' => true, 'other' => 'string']));
+        $this->assertTrue($type->accepts(['other' => 'string', 'foo' => true]));
+        $this->assertFalse($type->accepts(['other' => 1, 'foo' => true]));
+        $this->assertFalse($type->accepts(['other' => 'string', 'foo' => 'foo']));
     }
 
     public function testToString()
@@ -94,5 +131,19 @@ public function testToString()
             'bar' => ['type' => Type::string(), 'optional' => true],
         ]);
         $this->assertSame("array{'bar'?: string, 'foo': bool}", (string) $type);
+
+        $type = new ArrayShapeType(
+            shape: ['foo' => ['type' => Type::bool()]],
+            extraKeyType: Type::union(Type::int(), Type::string()),
+            extraValueType: Type::mixed(),
+        );
+        $this->assertSame("array{'foo': bool, ...}", (string) $type);
+
+        $type = new ArrayShapeType(
+            shape: ['foo' => ['type' => Type::bool()]],
+            extraKeyType: Type::int(),
+            extraValueType: Type::string(),
+        );
+        $this->assertSame("array{'foo': bool, ...<int, string>}", (string) $type);
     }
 }
diff --git a/src/Symfony/Component/TypeInfo/Tests/TypeFactoryTest.php b/src/Symfony/Component/TypeInfo/Tests/TypeFactoryTest.php
index 7f5520cc7d01a..65a33739bf0fb 100644
--- a/src/Symfony/Component/TypeInfo/Tests/TypeFactoryTest.php
+++ b/src/Symfony/Component/TypeInfo/Tests/TypeFactoryTest.php
@@ -210,6 +210,16 @@ public function testCreateArrayShape()
     {
         $this->assertEquals(new ArrayShapeType(['foo' => ['type' => Type::bool(), 'optional' => true]]), Type::arrayShape(['foo' => ['type' => Type::bool(), 'optional' => true]]));
         $this->assertEquals(new ArrayShapeType(['foo' => ['type' => Type::bool(), 'optional' => false]]), Type::arrayShape(['foo' => Type::bool()]));
+        $this->assertEquals(new ArrayShapeType(
+            shape: ['foo' => ['type' => Type::bool(), 'optional' => false]],
+            extraKeyType: Type::union(Type::int(), Type::string()),
+            extraValueType: Type::mixed(),
+        ), Type::arrayShape(['foo' => Type::bool()], sealed: false));
+        $this->assertEquals(new ArrayShapeType(
+            shape: ['foo' => ['type' => Type::bool(), 'optional' => false]],
+            extraKeyType: Type::string(),
+            extraValueType: Type::bool(),
+        ), Type::arrayShape(['foo' => Type::bool()], extraKeyType: Type::string(), extraValueType: Type::bool()));
     }
 
     /**
diff --git a/src/Symfony/Component/TypeInfo/Tests/TypeResolver/StringTypeResolverTest.php b/src/Symfony/Component/TypeInfo/Tests/TypeResolver/StringTypeResolverTest.php
index b2db7660f9026..21abd8d72c283 100644
--- a/src/Symfony/Component/TypeInfo/Tests/TypeResolver/StringTypeResolverTest.php
+++ b/src/Symfony/Component/TypeInfo/Tests/TypeResolver/StringTypeResolverTest.php
@@ -76,6 +76,9 @@ public static function resolveDataProvider(): iterable
         // array shape
         yield [Type::arrayShape(['foo' => Type::true(), 1 => Type::false()]), 'array{foo: true, 1: false}'];
         yield [Type::arrayShape(['foo' => ['type' => Type::bool(), 'optional' => true]]), 'array{foo?: bool}'];
+        yield [Type::arrayShape(['foo' => Type::bool()], sealed: false), 'array{foo: bool, ...}'];
+        yield [Type::arrayShape(['foo' => Type::bool()], extraKeyType: Type::int(), extraValueType: Type::string()), 'array{foo: bool, ...<int, string>}'];
+        yield [Type::arrayShape(['foo' => Type::bool()], extraValueType: Type::int()), 'array{foo: bool, ...<int>}'];
 
         // object shape
         yield [Type::object(), 'object{foo: true, bar: false}'];
diff --git a/src/Symfony/Component/TypeInfo/Type/ArrayShapeType.php b/src/Symfony/Component/TypeInfo/Type/ArrayShapeType.php
index 2c3819cc56dfd..504a59ac619ba 100644
--- a/src/Symfony/Component/TypeInfo/Type/ArrayShapeType.php
+++ b/src/Symfony/Component/TypeInfo/Type/ArrayShapeType.php
@@ -11,6 +11,7 @@
 
 namespace Symfony\Component\TypeInfo\Type;
 
+use Symfony\Component\TypeInfo\Exception\InvalidArgumentException;
 use Symfony\Component\TypeInfo\Type;
 use Symfony\Component\TypeInfo\TypeIdentifier;
 
@@ -31,8 +32,11 @@ final class ArrayShapeType extends CollectionType
     /**
      * @param array<array{type: Type, optional: bool}> $shape
      */
-    public function __construct(array $shape)
-    {
+    public function __construct(
+        array $shape,
+        private readonly ?Type $extraKeyType = null,
+        private readonly ?Type $extraValueType = null,
+    ) {
         $keyTypes = [];
         $valueTypes = [];
 
@@ -56,6 +60,14 @@ public function __construct(array $shape)
         ksort($sortedShape);
 
         $this->shape = $sortedShape;
+
+        if ($this->extraKeyType xor $this->extraValueType) {
+            throw new InvalidArgumentException(\sprintf('You must provide a value for "$%s" when "$%s" is provided.', $this->extraKeyType ? 'extraValueType' : 'extraKeyType', $this->extraKeyType ? 'extraKeyType' : 'extraValueType'));
+        }
+
+        if ($extraKeyType && !$extraKeyType->isIdentifiedBy(TypeIdentifier::INT, TypeIdentifier::STRING)) {
+            throw new InvalidArgumentException(\sprintf('"%s" is not a valid array key type.', (string) $extraKeyType));
+        }
     }
 
     /**
@@ -66,6 +78,21 @@ public function getShape(): array
         return $this->shape;
     }
 
+    public function isSealed(): bool
+    {
+        return null === $this->extraValueType;
+    }
+
+    public function getExtraKeyType(): ?Type
+    {
+        return $this->extraKeyType;
+    }
+
+    public function getExtraValueType(): ?Type
+    {
+        return $this->extraKeyType;
+    }
+
     public function accepts(mixed $value): bool
     {
         if (!\is_array($value)) {
@@ -80,11 +107,12 @@ public function accepts(mixed $value): bool
 
         foreach ($value as $key => $itemValue) {
             $valueType = $this->shape[$key]['type'] ?? false;
-            if (!$valueType) {
+
+            if ($valueType && !$valueType->accepts($itemValue)) {
                 return false;
             }
 
-            if (!$valueType->accepts($itemValue)) {
+            if (!$valueType && ($this->isSealed() || !$this->extraKeyType->accepts($key) || !$this->extraValueType->accepts($itemValue))) {
                 return false;
             }
         }
@@ -105,6 +133,12 @@ public function __toString(): string
             $items[] = \sprintf('%s: %s', $itemKey, $value['type']);
         }
 
+        if (!$this->isSealed()) {
+            $items[] = $this->extraKeyType->isIdentifiedBy(TypeIdentifier::INT) && $this->extraKeyType->isIdentifiedBy(TypeIdentifier::STRING) && $this->extraValueType->isIdentifiedBy(TypeIdentifier::MIXED)
+                ? '...'
+                : \sprintf('...<%s, %s>', $this->extraKeyType, $this->extraValueType);
+        }
+
         return \sprintf('array{%s}', implode(', ', $items));
     }
 }
diff --git a/src/Symfony/Component/TypeInfo/TypeFactoryTrait.php b/src/Symfony/Component/TypeInfo/TypeFactoryTrait.php
index 4fe2c7beb1609..125b3702016fb 100644
--- a/src/Symfony/Component/TypeInfo/TypeFactoryTrait.php
+++ b/src/Symfony/Component/TypeInfo/TypeFactoryTrait.php
@@ -198,13 +198,22 @@ public static function dict(?Type $value = null): CollectionType
     /**
      * @param array<array{type: Type, optional?: bool}|Type> $shape
      */
-    public static function arrayShape(array $shape): ArrayShapeType
+    public static function arrayShape(array $shape, bool $sealed = true, ?Type $extraKeyType = null, ?Type $extraValueType = null): ArrayShapeType
     {
-        return new ArrayShapeType(array_map(static function (array|Type $item): array {
+        $shape = array_map(static function (array|Type $item): array {
             return $item instanceof Type
                 ? ['type' => $item, 'optional' => false]
                 : ['type' => $item['type'], 'optional' => $item['optional'] ?? false];
-        }, $shape));
+        }, $shape);
+
+        if ($extraKeyType || $extraValueType) {
+            $sealed = false;
+        }
+
+        $extraKeyType ??= !$sealed ? Type::union(Type::int(), Type::string()) : null;
+        $extraValueType ??= !$sealed ? Type::mixed() : null;
+
+        return new ArrayShapeType($shape, $extraKeyType, $extraValueType);
     }
 
     /**
diff --git a/src/Symfony/Component/TypeInfo/TypeResolver/StringTypeResolver.php b/src/Symfony/Component/TypeInfo/TypeResolver/StringTypeResolver.php
index ff31b711389e6..244563f602f7d 100644
--- a/src/Symfony/Component/TypeInfo/TypeResolver/StringTypeResolver.php
+++ b/src/Symfony/Component/TypeInfo/TypeResolver/StringTypeResolver.php
@@ -110,7 +110,12 @@ private function getTypeFromNode(TypeNode $node, ?TypeContext $typeContext): Typ
                 ];
             }
 
-            return Type::arrayShape($shape);
+            return Type::arrayShape(
+                $shape,
+                $node->sealed,
+                $node->unsealedType?->keyType ? $this->getTypeFromNode($node->unsealedType->keyType, $typeContext) : null,
+                $node->unsealedType?->valueType ? $this->getTypeFromNode($node->unsealedType->valueType, $typeContext) : null,
+            );
         }
 
         if ($node instanceof ObjectShapeNode) {