diff --git a/flink-cdc-composer/src/main/java/org/apache/flink/cdc/composer/definition/PipelineDef.java b/flink-cdc-composer/src/main/java/org/apache/flink/cdc/composer/definition/PipelineDef.java
index 27d2bb83ecc..adcaec4c1c9 100644
--- a/flink-cdc-composer/src/main/java/org/apache/flink/cdc/composer/definition/PipelineDef.java
+++ b/flink-cdc-composer/src/main/java/org/apache/flink/cdc/composer/definition/PipelineDef.java
@@ -150,19 +150,6 @@ public static void validatePipelineDefinition(Configuration configuration)
                         PipelineOptions.PIPELINE_SCHEMA_OPERATOR_UID,
                         PipelineOptions.PIPELINE_SCHEMA_OPERATOR_RPC_TIMEOUT);
 
-        Set<String> optionKeys =
-                options.stream().map(ConfigOption::key).collect(Collectors.toSet());
-
-        configuration
-                .getKeys()
-                .forEach(
-                        key -> {
-                            if (!optionKeys.contains(key)) {
-                                throw new ValidationException(
-                                        String.format("Unknown configuration key `%s`", key));
-                            }
-                        });
-
         options.forEach(
                 option -> {
                     if (!configuration.getOptional(option).isPresent()
diff --git a/flink-cdc-composer/src/test/java/org/apache/flink/cdc/composer/definition/PipelineValidationTest.java b/flink-cdc-composer/src/test/java/org/apache/flink/cdc/composer/definition/PipelineValidationTest.java
index f4a07d0311a..920d77ffc7f 100644
--- a/flink-cdc-composer/src/test/java/org/apache/flink/cdc/composer/definition/PipelineValidationTest.java
+++ b/flink-cdc-composer/src/test/java/org/apache/flink/cdc/composer/definition/PipelineValidationTest.java
@@ -69,15 +69,14 @@ void testEmptyConfigValidation() {
 
     @Test
     void testUnknownConfigValidation() {
-        // An empty configuration should fail
+        // Unknown configuration entries should be tolerated
         Map<String, String> configurations = new HashMap<>();
 
         configurations.put("parallelism", "1");
         configurations.put("name", "Pipeline Job");
         configurations.put("unknown", "optionValue");
 
-        Assertions.assertThrowsExactly(
-                ValidationException.class,
+        Assertions.assertDoesNotThrow(
                 () ->
                         PipelineDef.validatePipelineDefinition(
                                 Configuration.fromMap(configurations)));