diff --git a/CHANGELOG.md b/CHANGELOG.md
index 50351ba7727..cb140038f96 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,7 @@
 * Doctrine: Revert #3774 support for binary UUID in search filter (#4134) 
 * Do not override Vary headers already set in the Response 
 * GraphQL: Make sure the order of order filters is preserved if nested resources are used (#4171)
+* Validation: properties regex pattern is now correctly anchored (#4176)
 
 ## 2.6.3
 
diff --git a/src/Bridge/Symfony/Validator/Metadata/Property/Restriction/PropertySchemaRegexRestriction.php b/src/Bridge/Symfony/Validator/Metadata/Property/Restriction/PropertySchemaRegexRestriction.php
index 167152748c8..18077acf25e 100644
--- a/src/Bridge/Symfony/Validator/Metadata/Property/Restriction/PropertySchemaRegexRestriction.php
+++ b/src/Bridge/Symfony/Validator/Metadata/Property/Restriction/PropertySchemaRegexRestriction.php
@@ -29,7 +29,7 @@ class PropertySchemaRegexRestriction implements PropertySchemaRestrictionMetadat
      */
     public function create(Constraint $constraint, PropertyMetadata $propertyMetadata): array
     {
-        return $constraint instanceof Regex && $constraint->getHtmlPattern() ? ['pattern' => $constraint->getHtmlPattern()] : [];
+        return $constraint instanceof Regex && $constraint->getHtmlPattern() ? ['pattern' => '^(?:'.$constraint->getHtmlPattern().')$'] : [];
     }
 
     /**
diff --git a/tests/Bridge/Symfony/Validator/Metadata/Property/ValidatorPropertyMetadataFactoryTest.php b/tests/Bridge/Symfony/Validator/Metadata/Property/ValidatorPropertyMetadataFactoryTest.php
index f7c59d07666..98b8cb8d88b 100644
--- a/tests/Bridge/Symfony/Validator/Metadata/Property/ValidatorPropertyMetadataFactoryTest.php
+++ b/tests/Bridge/Symfony/Validator/Metadata/Property/ValidatorPropertyMetadataFactoryTest.php
@@ -305,7 +305,7 @@ public function testCreateWithPropertyRegexRestriction(): void
         $schema = $validationPropertyMetadataFactory->create(DummyValidatedEntity::class, 'dummy')->getSchema();
         $this->assertNotNull($schema);
         $this->assertArrayHasKey('pattern', $schema);
-        $this->assertEquals('dummy', $schema['pattern']);
+        $this->assertEquals('^(?:dummy)$', $schema['pattern']);
     }
 
     public function testCreateWithPropertyFormatRestriction(): void
@@ -402,7 +402,7 @@ public function testCreateWithAtLeastOneOfConstraint(): void
         $this->assertNotNull($schema);
         $this->assertArrayHasKey('oneOf', $schema);
         $this->assertSame([
-            ['pattern' => '.*#.*'],
+            ['pattern' => '^(?:.*#.*)$'],
             ['minLength' => 10],
         ], $schema['oneOf']);
     }