diff --git a/build.gradle b/build.gradle
index 07db1a7fa..43b2c9d8e 100644
--- a/build.gradle
+++ b/build.gradle
@@ -145,6 +145,8 @@ task ktlintFormat(type: JavaExec, group: "formatting") {
     main = "com.pinterest.ktlint.Main"
     classpath = configurations.ktlint
     args "-F", "src/**/*.kt", "spi/src/main/**/*.kt"
+    // https://github.com/pinterest/ktlint/issues/1391
+    jvmArgs "--add-opens=java.base/java.lang=ALL-UNNAMED"
 }
 
 detekt {
diff --git a/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/ManagedIndexRunner.kt b/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/ManagedIndexRunner.kt
index 0b0f58d64..3722223e1 100644
--- a/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/ManagedIndexRunner.kt
+++ b/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/ManagedIndexRunner.kt
@@ -404,7 +404,13 @@ object ManagedIndexRunner :
         @Suppress("ComplexCondition", "MaxLineLength")
         if (updateResult.metadataSaved && state != null && action != null && step != null && currentActionMetaData != null) {
             if (validationServiceEnabled) {
-                val validationResult = actionValidation.validate(action.type, stepContext.metadata.index)
+                val validationResult = withClosableContext(
+                    IndexManagementSecurityContext(
+                        managedIndexConfig.id, settings, threadPool.threadContext, managedIndexConfig.policy.user
+                    )
+                ) {
+                    actionValidation.validate(action.type, stepContext.metadata.index)
+                }
                 if (validationResult.validationStatus == Validate.ValidationStatus.RE_VALIDATING) {
                     logger.warn("Validation Status is: RE_VALIDATING. The action is {}, state is {}, step is {}.\", action.type, state.name, step.name")
                     publishErrorNotification(policy, managedIndexMetaData)
diff --git a/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/transport/action/explain/TransportExplainAction.kt b/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/transport/action/explain/TransportExplainAction.kt
index ac7caab1f..f3d079a53 100644
--- a/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/transport/action/explain/TransportExplainAction.kt
+++ b/src/main/kotlin/org/opensearch/indexmanagement/indexstatemanagement/transport/action/explain/TransportExplainAction.kt
@@ -383,7 +383,7 @@ class TransportExplainAction @Inject constructor(
                         filteredIndices.add(indexNames[i])
                         filteredMetadata.add(indexMetadatas[i])
                         filteredPolicies.add(indexPolicyIDs[i])
-                        validationResults[i]?.let { filteredValidationResult.add(it) }
+                        validationResults[i].let { filteredValidationResult.add(it) }
                         enabledState[indexNames[i]]?.let { enabledStatus[indexNames[i]] = it }
                         appliedPolicies[indexNames[i]]?.let { filteredAppliedPolicies[indexNames[i]] = it }
                     } catch (e: OpenSearchSecurityException) {