diff --git a/CHANGELOG.md b/CHANGELOG.md
index 568ad27285..41303ce101 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 - Add iconStyle + onClick option and story shot for icon component ([#1100](https://github.com/scm-manager/scm-manager/pull/1100))
 - Making WebElements (Servlet or Filter) optional by using the `@Requires` annotation ([#1101](https://github.com/scm-manager/scm-manager/pull/1101))
+- Add class to manually validate rest data transfer objects with javax validation annotations ([#1114](https://github.com/scm-manager/scm-manager/pull/1114))
 
 ### Changed
 - Removed the `requires` attribute on the `@Extension` annotation and instead create a new `@Requires` annotation ([#1097](https://github.com/scm-manager/scm-manager/pull/1097))
diff --git a/scm-core/src/main/java/sonia/scm/web/api/DtoValidator.java b/scm-core/src/main/java/sonia/scm/web/api/DtoValidator.java
new file mode 100644
index 0000000000..9ac5d3ad16
--- /dev/null
+++ b/scm-core/src/main/java/sonia/scm/web/api/DtoValidator.java
@@ -0,0 +1,43 @@
+/*
+ * MIT License
+ *
+ * Copyright (c) 2020-present Cloudogu GmbH and Contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package sonia.scm.web.api;
+
+import javax.validation.ConstraintViolation;
+import javax.validation.ConstraintViolationException;
+import javax.validation.Validation;
+import javax.validation.Validator;
+import javax.validation.ValidatorFactory;
+import java.util.Set;
+
+public class DtoValidator {
+  void validate(Object configuration) {
+    ValidatorFactory factory = Validation.buildDefaultValidatorFactory();
+    Validator validator = factory.getValidator();
+    Set<ConstraintViolation<Object>> violations = validator.validate(configuration);
+    if (!violations.isEmpty()) {
+      throw new ConstraintViolationException(violations);
+    }
+  }
+}