diff --git a/changelog/_11643.txt b/changelog/_11643.txt
new file mode 100644
index 0000000000..eb1b98e9ed
--- /dev/null
+++ b/changelog/_11643.txt
@@ -0,0 +1,3 @@
+```release-note:bug
+ui: Reverts Kubernetes CA Certificate auth method configuration form field type to file selector 
+```
\ No newline at end of file
diff --git a/ui/app/routes/vault/cluster/settings/auth/configure/section.ts b/ui/app/routes/vault/cluster/settings/auth/configure/section.ts
index 59c2192086..fa92d6370f 100644
--- a/ui/app/routes/vault/cluster/settings/auth/configure/section.ts
+++ b/ui/app/routes/vault/cluster/settings/auth/configure/section.ts
@@ -132,10 +132,17 @@ export default class ClusterSettingsAuthConfigureRoute extends Route {
       }
     }
     const form = new OpenApiForm(this.schemaForType(methodType, section), formData, formOptions);
+    const defaultGroup = form.formFieldGroups[0]?.['default'] || [];
+    // to improve UX, set kubernetes_ca_cert editType to file
+    if (methodType === 'kubernetes') {
+      const kubernetesCaCertField = defaultGroup.find((field) => field.name === 'kubernetes_ca_cert');
+      if (kubernetesCaCertField) {
+        kubernetesCaCertField.options.editType = 'file';
+      }
+    }
     // for jwt and oidc types, the jwks_pairs field is not deprecated but we do not render it in the UI
     // remove the field from the group before rendering the form
     if (['jwt', 'oidc'].includes(methodType)) {
-      const defaultGroup = form.formFieldGroups[0]?.['default'] || [];
       const index = defaultGroup.findIndex((field) => field.name === 'jwks_pairs');
       if (index !== undefined && index >= 0) {
         defaultGroup.splice(index, 1);
diff --git a/ui/tests/unit/routes/vault/cluster/settings/auth/configure/section-test.js b/ui/tests/unit/routes/vault/cluster/settings/auth/configure/section-test.js
new file mode 100644
index 0000000000..404c660185
--- /dev/null
+++ b/ui/tests/unit/routes/vault/cluster/settings/auth/configure/section-test.js
@@ -0,0 +1,48 @@
+/**
+ * Copyright IBM Corp. 2016, 2025
+ * SPDX-License-Identifier: BUSL-1.1
+ */
+
+import { module, test } from 'qunit';
+import { setupTest } from 'vault/tests/helpers';
+import sinon from 'sinon';
+
+module('Unit | Route | vault/cluster/settings/auth/configure/section', function (hooks) {
+  setupTest(hooks);
+
+  hooks.beforeEach(function () {
+    const { auth } = this.owner.lookup('service:api');
+    sinon.stub(auth, 'kubernetesReadAuthConfiguration').resolves({});
+    sinon.stub(auth, 'jwtReadConfiguration').resolves({});
+
+    this.route = this.owner.lookup('route:vault/cluster/settings/auth/configure/section');
+    this.modelForStub = sinon.stub(this.route, 'modelFor');
+
+    this.testModelForConfiguration = async (methodType, fieldKey) => {
+      this.modelForStub.returns({ method: { methodType, path: `${methodType}-test` } });
+      const { form } = await this.route.modelForConfiguration('configuration');
+      const defaultGroup = form.formFieldGroups[0]['default'];
+      const field = defaultGroup.find((field) => field.name === fieldKey);
+      return { form, defaultGroup, field };
+    };
+  });
+
+  test('it should remove jwks_pairs form field for jwt type', async function (assert) {
+    const { field } = await this.testModelForConfiguration('jwt', 'jwks_pairs');
+    assert.strictEqual(field, undefined, 'jwks_pairs field is removed for jwt type');
+  });
+
+  test('it should remove jwks_pairs form field for oidc type', async function (assert) {
+    const { field } = await this.testModelForConfiguration('oidc', 'jwks_pairs');
+    assert.strictEqual(field, undefined, 'jwks_pairs field is removed for oidc type');
+  });
+
+  test('it should update kubernetes_ca_cert form field editType to file', async function (assert) {
+    const { field } = await this.testModelForConfiguration('kubernetes', 'kubernetes_ca_cert');
+    assert.strictEqual(
+      field.options.editType,
+      'file',
+      'editType is set to file for kubernetes_ca_cert field'
+    );
+  });
+});