diff --git a/airflow-core/src/airflow/api_fastapi/core_api/datamodels/dag_run.py b/airflow-core/src/airflow/api_fastapi/core_api/datamodels/dag_run.py
index 966de7e78f785..367547a8d8e09 100644
--- a/airflow-core/src/airflow/api_fastapi/core_api/datamodels/dag_run.py
+++ b/airflow-core/src/airflow/api_fastapi/core_api/datamodels/dag_run.py
@@ -73,7 +73,7 @@ class DAGRunResponse(BaseModel):
     run_type: DagRunType
     state: DagRunState
     triggered_by: DagRunTriggeredByType | None
-    conf: dict
+    conf: dict | None
     note: str | None
     dag_versions: list[DagVersionResponse]
     bundle_version: str | None
diff --git a/airflow-core/src/airflow/api_fastapi/core_api/openapi/_private_ui.yaml b/airflow-core/src/airflow/api_fastapi/core_api/openapi/_private_ui.yaml
index 7f34ed7b3cb9a..4df5d890b469b 100644
--- a/airflow-core/src/airflow/api_fastapi/core_api/openapi/_private_ui.yaml
+++ b/airflow-core/src/airflow/api_fastapi/core_api/openapi/_private_ui.yaml
@@ -955,8 +955,10 @@ components:
           - $ref: '#/components/schemas/DagRunTriggeredByType'
           - type: 'null'
         conf:
-          additionalProperties: true
-          type: object
+          anyOf:
+          - additionalProperties: true
+            type: object
+          - type: 'null'
           title: Conf
         note:
           anyOf:
diff --git a/airflow-core/src/airflow/api_fastapi/core_api/openapi/v2-rest-api-generated.yaml b/airflow-core/src/airflow/api_fastapi/core_api/openapi/v2-rest-api-generated.yaml
index 2d8f43b62e09e..f6b7c8ce2c2e7 100644
--- a/airflow-core/src/airflow/api_fastapi/core_api/openapi/v2-rest-api-generated.yaml
+++ b/airflow-core/src/airflow/api_fastapi/core_api/openapi/v2-rest-api-generated.yaml
@@ -8464,8 +8464,10 @@ components:
           - $ref: '#/components/schemas/DagRunTriggeredByType'
           - type: 'null'
         conf:
-          additionalProperties: true
-          type: object
+          anyOf:
+          - additionalProperties: true
+            type: object
+          - type: 'null'
           title: Conf
         note:
           anyOf:
diff --git a/airflow-core/src/airflow/ui/openapi-gen/requests/schemas.gen.ts b/airflow-core/src/airflow/ui/openapi-gen/requests/schemas.gen.ts
index 8b3913a40844f..e11b1c29020e9 100644
--- a/airflow-core/src/airflow/ui/openapi-gen/requests/schemas.gen.ts
+++ b/airflow-core/src/airflow/ui/openapi-gen/requests/schemas.gen.ts
@@ -2275,8 +2275,15 @@ export const $DAGRunResponse = {
       ],
     },
     conf: {
-      additionalProperties: true,
-      type: "object",
+      anyOf: [
+        {
+          additionalProperties: true,
+          type: "object",
+        },
+        {
+          type: "null",
+        },
+      ],
       title: "Conf",
     },
     note: {
diff --git a/airflow-core/src/airflow/ui/openapi-gen/requests/types.gen.ts b/airflow-core/src/airflow/ui/openapi-gen/requests/types.gen.ts
index 3e5232ef9cd2b..77f26b12b5a07 100644
--- a/airflow-core/src/airflow/ui/openapi-gen/requests/types.gen.ts
+++ b/airflow-core/src/airflow/ui/openapi-gen/requests/types.gen.ts
@@ -582,7 +582,7 @@ export type DAGRunResponse = {
   triggered_by: DagRunTriggeredByType | null;
   conf: {
     [key: string]: unknown;
-  };
+  } | null;
   note: string | null;
   dag_versions: Array<DagVersionResponse>;
   bundle_version: string | null;
diff --git a/airflow-core/src/airflow/ui/src/pages/Run/Details.tsx b/airflow-core/src/airflow/ui/src/pages/Run/Details.tsx
index f20ada8603517..8a65fcafe6761 100644
--- a/airflow-core/src/airflow/ui/src/pages/Run/Details.tsx
+++ b/airflow-core/src/airflow/ui/src/pages/Run/Details.tsx
@@ -151,7 +151,7 @@ export const Details = () => {
             <Table.Row>
               <Table.Cell>Run Config</Table.Cell>
               <Table.Cell>
-                <RenderedJsonField content={dagRun.conf} />
+                <RenderedJsonField content={dagRun.conf ?? {}} />
               </Table.Cell>
             </Table.Row>
           </Table.Body>
diff --git a/airflow-ctl/src/airflowctl/api/datamodels/generated.py b/airflow-ctl/src/airflowctl/api/datamodels/generated.py
index abc0ae5811b89..0bf806c8bc0f9 100644
--- a/airflow-ctl/src/airflowctl/api/datamodels/generated.py
+++ b/airflow-ctl/src/airflowctl/api/datamodels/generated.py
@@ -1245,7 +1245,7 @@ class DAGRunResponse(BaseModel):
     run_type: DagRunType
     state: DagRunState
     triggered_by: DagRunTriggeredByType | None = None
-    conf: Annotated[dict[str, Any], Field(title="Conf")]
+    conf: Annotated[dict[str, Any] | None, Field(title="Conf")] = None
     note: Annotated[str | None, Field(title="Note")] = None
     dag_versions: Annotated[list[DagVersionResponse], Field(title="Dag Versions")]
     bundle_version: Annotated[str | None, Field(title="Bundle Version")] = None