diff --git a/packages/nodes-base/nodes/Zendesk/ZendeskTrigger.node.ts b/packages/nodes-base/nodes/Zendesk/ZendeskTrigger.node.ts
index 5c2e0255f21..e938dece98e 100644
--- a/packages/nodes-base/nodes/Zendesk/ZendeskTrigger.node.ts
+++ b/packages/nodes-base/nodes/Zendesk/ZendeskTrigger.node.ts
@@ -429,14 +429,17 @@ export class ZendeskTrigger implements INodeType {
 						actions?: Array<{ field?: string; value?: unknown }>;
 					}> = await zendeskApiRequestAllItems.call(this, 'triggers', 'GET', '/triggers/active');
 
-					const webhookStillInUse = remainingTriggers.some((trigger) =>
-						trigger?.actions?.some(
-							(action) =>
-								action?.field === 'notification_webhook' &&
-								(Array.isArray(action.value)
-									? String(action.value[0]) === String(webhookData.targetId)
-									: String(action.value) === String(webhookData.targetId)),
-						),
+					const webhookStillInUse = remainingTriggers.some(
+						(trigger) =>
+							!trigger?.actions ||
+							!Array.isArray(trigger.actions) ||
+							trigger.actions.some(
+								(action) =>
+									action?.field === 'notification_webhook' &&
+									(Array.isArray(action.value)
+										? String(action.value[0]) === String(webhookData.targetId)
+										: String(action.value) === String(webhookData.targetId)),
+							),
 					);
 
 					if (!webhookStillInUse) {
diff --git a/packages/nodes-base/nodes/Zendesk/__tests__/ZendeskTrigger.node.test.ts b/packages/nodes-base/nodes/Zendesk/__tests__/ZendeskTrigger.node.test.ts
index 06baf240aee..a01940ec8d3 100644
--- a/packages/nodes-base/nodes/Zendesk/__tests__/ZendeskTrigger.node.test.ts
+++ b/packages/nodes-base/nodes/Zendesk/__tests__/ZendeskTrigger.node.test.ts
@@ -246,6 +246,27 @@ describe('ZendeskTrigger Node', () => {
 			);
 			expect(deleteWebhookCalls).toHaveLength(0);
 		});
+
+		it('should treat triggers with missing or invalid actions as still in use to prevent accidental webhook deletion', async () => {
+			const apiRequestSpy = vi
+				.spyOn(GenericFunctions, 'zendeskApiRequest')
+				.mockResolvedValueOnce({});
+			vi.spyOn(GenericFunctions, 'zendeskApiRequestAllItems').mockResolvedValueOnce([
+				{
+					actions: undefined,
+				},
+			]);
+
+			const trigger = new ZendeskTrigger();
+			const result = await trigger.webhookMethods.default.delete.call(mockThis);
+
+			expect(result).toBe(true);
+			const deleteWebhookCalls = apiRequestSpy.mock.calls.filter(
+				([method, path]) =>
+					method === 'DELETE' && typeof path === 'string' && path.startsWith('/webhooks'),
+			);
+			expect(deleteWebhookCalls).toHaveLength(0);
+		});
 	});
 
 	describe('checkExists webhook method', () => {