diff --git a/test-framework/junit-component/pom.xml b/test-framework/junit-component/pom.xml
index a6c912a0d1d7c..1e13f6379c375 100644
--- a/test-framework/junit-component/pom.xml
+++ b/test-framework/junit-component/pom.xml
@@ -63,6 +63,11 @@
             <artifactId>smallrye-common-annotation</artifactId>
         </dependency>
         <!-- Test dependencies -->
+        <dependency>
+            <groupId>io.smallrye.config</groupId>
+            <artifactId>smallrye-config-source-yaml</artifactId>
+            <scope>test</scope>
+        </dependency>
         <dependency>
             <groupId>org.jboss.logmanager</groupId>
             <artifactId>jboss-logmanager</artifactId>
diff --git a/test-framework/junit-component/src/main/java/io/quarkus/test/component/QuarkusComponentTestExtension.java b/test-framework/junit-component/src/main/java/io/quarkus/test/component/QuarkusComponentTestExtension.java
index d4d172ad7c59c..ca50a87014d92 100644
--- a/test-framework/junit-component/src/main/java/io/quarkus/test/component/QuarkusComponentTestExtension.java
+++ b/test-framework/junit-component/src/main/java/io/quarkus/test/component/QuarkusComponentTestExtension.java
@@ -525,6 +525,7 @@ private void startContainer(ExtensionContext context, Lifecycle testInstanceLife
                 // We intentionally skip system properties and ENV variables by default
                 // See https://github.com/quarkusio/quarkus/issues/48899 for more details
                 .addPropertiesSources()
+                .addDiscoveredSources()
                 .withSources(
                         new QuarkusComponentTestConfigSource(configProperties,
                                 configuration.configSourceOrdinal));
diff --git a/test-framework/junit-component/src/test/java/io/quarkus/test/component/ApplicationYamlConfigSourceTest.java b/test-framework/junit-component/src/test/java/io/quarkus/test/component/ApplicationYamlConfigSourceTest.java
new file mode 100644
index 0000000000000..02a5718347899
--- /dev/null
+++ b/test-framework/junit-component/src/test/java/io/quarkus/test/component/ApplicationYamlConfigSourceTest.java
@@ -0,0 +1,32 @@
+package io.quarkus.test.component;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
+
+import org.eclipse.microprofile.config.inject.ConfigProperty;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.RegisterExtension;
+
+public class ApplicationYamlConfigSourceTest {
+
+    @RegisterExtension
+    static final QuarkusComponentTestExtension extension = QuarkusComponentTestExtension.builder()
+            .build();
+
+    @Inject
+    YamlComponent component;
+
+    @Test
+    public void testYamlConfig() {
+        assertEquals("from-yaml", component.yamlProperty);
+    }
+
+    @Singleton
+    public static class YamlComponent {
+
+        @ConfigProperty(name = "org.acme.yaml-property")
+        String yamlProperty;
+    }
+}
diff --git a/test-framework/junit-component/src/test/resources/application.yaml b/test-framework/junit-component/src/test/resources/application.yaml
new file mode 100644
index 0000000000000..7999a7c5c22a7
--- /dev/null
+++ b/test-framework/junit-component/src/test/resources/application.yaml
@@ -0,0 +1,3 @@
+org:
+  acme:
+    yaml-property: from-yaml