diff --git a/opencti-platform/opencti-graphql/src/manager/ingestionManager.ts b/opencti-platform/opencti-graphql/src/manager/ingestionManager.ts
index 0d22d7c0bc77..4f9e3a143a07 100644
--- a/opencti-platform/opencti-graphql/src/manager/ingestionManager.ts
+++ b/opencti-platform/opencti-graphql/src/manager/ingestionManager.ts
@@ -431,7 +431,7 @@ export const processTaxiiResponse = async (context: AuthContext, ingestion: Basi
       // Reset the pagination cursor, and update date
       const state = {
         current_state_cursor: undefined,
-        added_after_start: addedLastHeader ? utcDate(addedLastHeader) : utcDate(),
+        added_after_start: addedLastHeader ? utcDate(addedLastHeader).toISOString() : now(),
         last_execution_date: now()
       };
       const ingestionUpdate = await patchTaxiiIngestion(context, SYSTEM_USER, ingestion.internal_id, state);
@@ -529,7 +529,7 @@ export const processCsvLines = async (
     await reportExpectation(context, ingestionUser, work.id);// csv file ends = 1 operation done.
 
     logApp.info(`[OPENCTI-MODULE] INGESTION Csv - Sent: ${bundleCount} bundles for ${objectsInBundleCount} objects.`);
-    const state = { current_state_hash: hashedIncomingData, added_after_start: utcDate(addedLast), last_execution_date: now() };
+    const state = { current_state_hash: hashedIncomingData, added_after_start: utcDate(addedLast).toISOString(), last_execution_date: now() };
     await patchCsvIngestion(context, SYSTEM_USER, ingestion.internal_id, state);
     await updateBuiltInConnectorInfo(context, ingestion.user_id, ingestion.id, { state });
   }
diff --git a/opencti-platform/opencti-graphql/src/modules/ingestion/ingestion-taxii-domain.ts b/opencti-platform/opencti-graphql/src/modules/ingestion/ingestion-taxii-domain.ts
index c4220bf1b5d8..a3b6d853c2e0 100644
--- a/opencti-platform/opencti-graphql/src/modules/ingestion/ingestion-taxii-domain.ts
+++ b/opencti-platform/opencti-graphql/src/modules/ingestion/ingestion-taxii-domain.ts
@@ -1,4 +1,3 @@
-import type { Moment } from 'moment/moment';
 import { type BasicStoreEntityIngestionTaxii, ENTITY_TYPE_INGESTION_TAXII } from './ingestion-types';
 import { createEntity, deleteElementById, patchAttribute, updateAttribute } from '../../database/middleware';
 import { listAllEntities, listEntitiesPaginated, storeLoadById } from '../../database/middleware-loader';
@@ -51,7 +50,7 @@ export const addIngestion = async (context: AuthContext, user: AuthUser, input:
 export interface TaxiiIngestionPatch {
   current_state_cursor?: string | undefined,
   last_execution_date?: string,
-  added_after_start?: Moment,
+  added_after_start?: string,
 }
 
 export const patchTaxiiIngestion = async (context: AuthContext, user: AuthUser, id: string, patch: TaxiiIngestionPatch) => {
diff --git a/opencti-platform/opencti-graphql/src/schema/schema-attributes.ts b/opencti-platform/opencti-graphql/src/schema/schema-attributes.ts
index 77d65d699c3e..1182ed041106 100644
--- a/opencti-platform/opencti-graphql/src/schema/schema-attributes.ts
+++ b/opencti-platform/opencti-graphql/src/schema/schema-attributes.ts
@@ -1,4 +1,5 @@
 import * as R from 'ramda';
+import { GraphQLDateTime } from 'graphql-scalars';
 import { RULE_PREFIX } from './general';
 import { FunctionalError, UnsupportedError } from '../config/errors';
 import type { AttributeDefinition, AttrType, ComplexAttributeWithMappings, MappingDefinition } from './attribute-definition';
@@ -20,7 +21,7 @@ export const depsKeysRegister = {
 // -- Utilities to manipulate AttributeDefinitions --
 
 const isMandatoryAttributeDefinition = (schemaDef: AttributeDefinition) => schemaDef.mandatoryType === 'external' || schemaDef.mandatoryType === 'internal';
-
+const isDateAttributeDefinition = (schemaDef: AttributeDefinition) => schemaDef.type === 'date';
 const isNonFlatObjectAttributeDefinition = (schemaDef: AttributeDefinition) : schemaDef is ComplexAttributeWithMappings => { // handy typeguard
   return schemaDef.type === 'object' && schemaDef.format !== 'flat';
 };
@@ -301,6 +302,13 @@ const validateInputAgainstSchema = (input: any, schemaDef: AttributeDefinition)
   if (isMandatory && R.isNil(input)) {
     throw FunctionalError(`Validation against schema failed on attribute [${schemaDef.name}]: this mandatory field cannot be nil`);
   }
+  if (isDateAttributeDefinition(schemaDef) && !R.isNil(input)) {
+    try {
+      GraphQLDateTime.parseValue(input);
+    } catch {
+      throw FunctionalError(`Validation against schema failed on attribute [${schemaDef.name}]: this date field is not in a valid format`);
+    }
+  }
 
   if (isNonFlatObjectAttributeDefinition(schemaDef)) {
     if (!isMandatory && R.isNil(input)) {
diff --git a/opencti-platform/opencti-graphql/tests/02-integration/02-resolvers/ingestion-csv-test.ts b/opencti-platform/opencti-graphql/tests/02-integration/02-resolvers/ingestion-csv-test.ts
index 0696854fe3c8..8f590442ab10 100644
--- a/opencti-platform/opencti-graphql/tests/02-integration/02-resolvers/ingestion-csv-test.ts
+++ b/opencti-platform/opencti-graphql/tests/02-integration/02-resolvers/ingestion-csv-test.ts
@@ -3,7 +3,7 @@ import gql from 'graphql-tag';
 import { ADMIN_USER, queryAsAdmin, testContext, USER_PARTICIPATE } from '../../utils/testQuery';
 import { queryAsAdminWithSuccess, queryAsUserIsExpectedForbidden } from '../../utils/testQueryHelper';
 import { patchCsvIngestion } from '../../../src/modules/ingestion/ingestion-csv-domain';
-import { utcDate } from '../../../src/utils/format';
+import { now } from '../../../src/utils/format';
 import { SYSTEM_USER } from '../../../src/utils/access';
 
 describe('CSV ingestion resolver standard behavior', () => {
@@ -156,7 +156,7 @@ describe('CSV ingestion resolver standard behavior', () => {
 
   it('should reset state of CSV feeds ingester', async () => {
     // shortcut to set a hash that is defined
-    const patch = { current_state_hash: 'bbbbbbbbbbbbbbbbbb', added_after_start: utcDate() };
+    const patch = { current_state_hash: 'bbbbbbbbbbbbbbbbbb', added_after_start: now() };
     const result = await patchCsvIngestion(testContext, SYSTEM_USER, singleColumnCsvFeedIngesterId, patch);
     expect(result.current_state_hash).toBe('bbbbbbbbbbbbbbbbbb');
 
diff --git a/opencti-platform/opencti-graphql/tests/02-integration/02-resolvers/report-test.js b/opencti-platform/opencti-graphql/tests/02-integration/02-resolvers/report-test.js
index 732fe681e191..271b10297cdf 100644
--- a/opencti-platform/opencti-graphql/tests/02-integration/02-resolvers/report-test.js
+++ b/opencti-platform/opencti-graphql/tests/02-integration/02-resolvers/report-test.js
@@ -337,6 +337,25 @@ describe('Report resolver standard behavior', () => {
     });
     expect(queryResult.data.reportEdit.fieldPatch.name).toEqual('Report - test');
   });
+  it('should update report with invalid published date fail', async () => {
+    const UPDATE_QUERY = gql`
+      mutation ReportEdit($id: ID!, $input: [EditInput]!) {
+        reportEdit(id: $id) {
+          fieldPatch(input: $input) {
+            id
+            name
+            description
+            published
+          }
+        }
+      }
+    `;
+    const queryResult = await queryAsAdmin({
+      query: UPDATE_QUERY,
+      variables: { id: reportInternalId, input: { key: 'published', value: ['2025-02-01'] } },
+    });
+    expect(queryResult.errors).toBeDefined();
+  });
   it('should context patch report', async () => {
     const CONTEXT_PATCH_QUERY = gql`
       mutation ReportEdit($id: ID!, $input: EditContext) {