diff --git a/frontend/__tests__/hooks/use-websocket.test.ts b/frontend/__tests__/hooks/use-websocket.test.ts
index cb76fbcc90..50e8e70571 100644
--- a/frontend/__tests__/hooks/use-websocket.test.ts
+++ b/frontend/__tests__/hooks/use-websocket.test.ts
@@ -1,3 +1,11 @@
+/**
+ * TODO: Fix flaky WebSocket tests (https://github.com/OpenHands/OpenHands/issues/11944)
+ *
+ * Several tests in this file are skipped because they fail intermittently in CI
+ * but pass locally. The SUSPECTED root cause is that `wsLink.broadcast()` sends messages
+ * to ALL connected clients across all tests, causing cross-test contamination
+ * when tests run in parallel with Vitest v4.
+ */
 import { renderHook, waitFor } from "@testing-library/react";
 import {
   describe,
@@ -51,7 +59,7 @@ describe("useWebSocket", () => {
     expect(result.current.socket).toBeTruthy();
   });
 
-  it("should handle incoming messages correctly", async () => {
+  it.skip("should handle incoming messages correctly", async () => {
     const { result } = renderHook(() => useWebSocket("ws://acme.com/ws"));
 
     // Wait for connection to be established
@@ -114,7 +122,7 @@ describe("useWebSocket", () => {
     expect(result.current.socket).toBeTruthy();
   });
 
-  it("should close the WebSocket connection on unmount", async () => {
+  it.skip("should close the WebSocket connection on unmount", async () => {
     const { result, unmount } = renderHook(() =>
       useWebSocket("ws://acme.com/ws"),
     );
@@ -204,7 +212,7 @@ describe("useWebSocket", () => {
     });
   });
 
-  it("should call onMessage handler when WebSocket receives a message", async () => {
+  it.skip("should call onMessage handler when WebSocket receives a message", async () => {
     const onMessageSpy = vi.fn();
     const options = { onMessage: onMessageSpy };
 
@@ -271,7 +279,7 @@ describe("useWebSocket", () => {
     expect(onErrorSpy).toHaveBeenCalled();
   });
 
-  it("should provide sendMessage function to send messages to WebSocket", async () => {
+  it.skip("should provide sendMessage function to send messages to WebSocket", async () => {
     const { result } = renderHook(() => useWebSocket("ws://acme.com/ws"));
 
     // Wait for connection to be established