diff --git a/extensions/telegram/src/polling-lease.test.ts b/extensions/telegram/src/polling-lease.test.ts
index d56b2f4b1fa..fc95743c3cf 100644
--- a/extensions/telegram/src/polling-lease.test.ts
+++ b/extensions/telegram/src/polling-lease.test.ts
@@ -1,3 +1,4 @@
+import { MAX_TIMER_TIMEOUT_MS } from "openclaw/plugin-sdk/number-runtime";
 import { beforeEach, describe, expect, it, vi } from "vitest";
 import {
   acquireTelegramPollingLease,
@@ -101,6 +102,33 @@ describe("Telegram polling lease", () => {
     }
   });
 
+  it("caps oversized duplicate-poller wait timers before scheduling", async () => {
+    vi.useFakeTimers();
+    try {
+      const oldAbort = new AbortController();
+      const first = await acquireTelegramPollingLease({
+        token: "123:abc",
+        accountId: "old",
+        abortSignal: oldAbort.signal,
+      });
+      oldAbort.abort();
+      const timeoutSpy = vi.spyOn(globalThis, "setTimeout");
+
+      void acquireTelegramPollingLease({
+        token: "123:abc",
+        accountId: "new",
+        waitMs: Number.MAX_SAFE_INTEGER,
+      }).catch(() => undefined);
+      await Promise.resolve();
+
+      expect(timeoutSpy).toHaveBeenCalledWith(expect.any(Function), MAX_TIMER_TIMEOUT_MS);
+      first.release();
+    } finally {
+      vi.useRealTimers();
+      vi.restoreAllMocks();
+    }
+  });
+
   it("does not release a no-signal active lease", async () => {
     const first = await acquireTelegramPollingLease({
       token: "123:abc",
diff --git a/extensions/telegram/src/polling-lease.ts b/extensions/telegram/src/polling-lease.ts
index 9e853b576ee..4669cea0bc3 100644
--- a/extensions/telegram/src/polling-lease.ts
+++ b/extensions/telegram/src/polling-lease.ts
@@ -1,3 +1,4 @@
+import { resolveTimerTimeoutMs } from "openclaw/plugin-sdk/number-runtime";
 import { fingerprintTelegramBotToken } from "./token-fingerprint.js";
 
 const TELEGRAM_POLLING_LEASES_KEY = Symbol.for("openclaw.telegram.pollingLeases");
@@ -71,8 +72,9 @@ async function waitForPreviousRelease(params: {
   let timer: ReturnType<typeof setTimeout> | undefined;
   let abortListener: (() => void) | undefined;
   try {
+    const waitMs = resolveTimerTimeoutMs(params.waitMs, DEFAULT_TELEGRAM_POLLING_LEASE_WAIT_MS, 0);
     const timeout = new Promise<"timeout">((resolve) => {
-      timer = setTimeout(() => resolve("timeout"), Math.max(0, params.waitMs));
+      timer = setTimeout(() => resolve("timeout"), waitMs);
       timer.unref?.();
     });
     const aborted = new Promise<"aborted">((resolve) => {