diff --git a/src/Metadata/Extractor/YamlResourceExtractor.php b/src/Metadata/Extractor/YamlResourceExtractor.php
index e7dd40093c8..10f6b700129 100644
--- a/src/Metadata/Extractor/YamlResourceExtractor.php
+++ b/src/Metadata/Extractor/YamlResourceExtractor.php
@@ -258,6 +258,14 @@ private function buildOpenapi(array $resource): bool|OpenApiOperation|null
         if (\array_key_exists('parameters', $resource['openapi']) && \is_array($openapiParameters = $resource['openapi']['parameters'] ?? [])) {
             $parameters = [];
             foreach ($openapiParameters as $parameter) {
+                if (!isset($parameter['name'])) {
+                    throw new InvalidArgumentException('OpenAPI parameter is missing the required "name" key.');
+                }
+
+                if (!isset($parameter['in'])) {
+                    throw new InvalidArgumentException(\sprintf('OpenAPI parameter "%s" is missing the required "in" key.', $parameter['name']));
+                }
+
                 $parameters[] = new Parameter(
                     name: $parameter['name'],
                     in: $parameter['in'],
diff --git a/src/Metadata/Tests/Extractor/YamlExtractorTest.php b/src/Metadata/Tests/Extractor/YamlExtractorTest.php
index 6384942192e..9e24f4ac5a9 100644
--- a/src/Metadata/Tests/Extractor/YamlExtractorTest.php
+++ b/src/Metadata/Tests/Extractor/YamlExtractorTest.php
@@ -518,6 +518,14 @@ public function testOpenApiParameters(): void
         $this->assertEquals('john-doe', $operation->getParameters()[0]->getExample());
     }
 
+    public function testOpenApiParameterWithoutNameThrowsClearException(): void
+    {
+        $this->expectException(InvalidArgumentException::class);
+        $this->expectExceptionMessage('OpenAPI parameter is missing the required "name" key');
+
+        (new YamlResourceExtractor([__DIR__.'/yaml/openapi-parameter-without-name.yaml']))->getResources();
+    }
+
     public function testInputAndOutputAreBooleans(): void
     {
         $extractor = new YamlResourceExtractor([__DIR__.'/yaml/input-and-output-are-booleans.yaml']);
diff --git a/src/Metadata/Tests/Extractor/yaml/openapi-parameter-without-name.yaml b/src/Metadata/Tests/Extractor/yaml/openapi-parameter-without-name.yaml
new file mode 100644
index 00000000000..1f57fe47fb2
--- /dev/null
+++ b/src/Metadata/Tests/Extractor/yaml/openapi-parameter-without-name.yaml
@@ -0,0 +1,9 @@
+resources:
+    ApiPlatform\Metadata\Tests\Fixtures\ApiResource\Program:
+        -   uriTemplate: /programs.{_format}
+            operations:
+                ApiPlatform\Metadata\GetCollection:
+                    openapi:
+                        parameters:
+                            -   in: query
+                                description: A parameter without a name