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 49661dfd5db0a..eb3898f955e00 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 5eead52583dd4..c59d75f0f5d94 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
@@ -934,8 +934,10 @@ 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/v1-rest-api-generated.yaml b/airflow-core/src/airflow/api_fastapi/core_api/openapi/v1-rest-api-generated.yaml
index b596b3f9fabb8..fd9889d4bcd49 100644
--- a/airflow-core/src/airflow/api_fastapi/core_api/openapi/v1-rest-api-generated.yaml
+++ b/airflow-core/src/airflow/api_fastapi/core_api/openapi/v1-rest-api-generated.yaml
@@ -8231,8 +8231,10 @@ 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 71358efef679e..809715e9037f1 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
@@ -2247,8 +2247,15 @@ 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 ba8bbb28d2de0..d3dccd5f90233 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
@@ -577,7 +577,7 @@ 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 44b1035cbfa81..43140625fbea6 100644
--- a/airflow-core/src/airflow/ui/src/pages/Run/Details.tsx
+++ b/airflow-core/src/airflow/ui/src/pages/Run/Details.tsx
@@ -145,7 +145,7 @@ 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 81c1066495dfd..4c790551c7804 100644
--- a/airflow-ctl/src/airflowctl/api/datamodels/generated.py
+++ b/airflow-ctl/src/airflowctl/api/datamodels/generated.py
@@ -1219,7 +1219,7 @@ 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