diff --git a/CHANGELOG.md b/CHANGELOG.md
index 48290d3389f..c64548aa5a0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -48,6 +48,7 @@ Docs: https://docs.openclaw.ai
 - Slack/probe: keep `auth.test()` bot and team metadata mapping stable while simplifying the probe result path. (#44775) Thanks @Cafexss.
 - Dashboard/chat UI: restore the `chat-new-messages` class on the New messages scroll pill so the button uses its existing compact styling instead of rendering as a full-screen SVG overlay. (#44856) Thanks @Astro-Han.
 - Windows/gateway status: reuse the installed service command environment when reading runtime status, so startup-fallback gateways keep reporting the configured port and running state in `gateway status --json` instead of falling back to `gateway port unknown`.
+- Security/device pairing: make bootstrap setup codes single-use so pending device pairing requests cannot be silently replayed and widened to admin before approval. Thanks @tdjackey.
 
 ## 2026.3.12
 
diff --git a/src/infra/device-bootstrap.test.ts b/src/infra/device-bootstrap.test.ts
index e20aafab9b6..a8206f30b02 100644
--- a/src/infra/device-bootstrap.test.ts
+++ b/src/infra/device-bootstrap.test.ts
@@ -24,7 +24,23 @@ afterEach(async () => {
 });
 
 describe("device bootstrap tokens", () => {
-  it("binds the first successful verification to a device identity", async () => {
+  it("accepts the first successful verification", async () => {
+    const baseDir = await createBaseDir();
+    const issued = await issueDeviceBootstrapToken({ baseDir });
+
+    await expect(
+      verifyDeviceBootstrapToken({
+        token: issued.token,
+        deviceId: "device-1",
+        publicKey: "pub-1",
+        role: "node",
+        scopes: ["node.invoke"],
+        baseDir,
+      }),
+    ).resolves.toEqual({ ok: true });
+  });
+
+  it("rejects replay after the first successful verification", async () => {
     const baseDir = await createBaseDir();
     const issued = await issueDeviceBootstrapToken({ baseDir });
 
@@ -48,10 +64,10 @@ describe("device bootstrap tokens", () => {
         scopes: ["operator.read"],
         baseDir,
       }),
-    ).resolves.toEqual({ ok: true });
+    ).resolves.toEqual({ ok: false, reason: "bootstrap_token_invalid" });
   });
 
-  it("rejects reuse from a different device after binding", async () => {
+  it("rejects reuse from a different device after consumption", async () => {
     const baseDir = await createBaseDir();
     const issued = await issueDeviceBootstrapToken({ baseDir });
 
diff --git a/src/infra/device-bootstrap.ts b/src/infra/device-bootstrap.ts
index 9f763b50cb3..50a4e53ffd2 100644
--- a/src/infra/device-bootstrap.ts
+++ b/src/infra/device-bootstrap.ts
@@ -25,29 +25,6 @@ type DeviceBootstrapStateFile = Record<string, DeviceBootstrapTokenRecord>;
 
 const withLock = createAsyncLock();
 
-function mergeRoles(existing: string[] | undefined, role: string): string[] {
-  const out = new Set<string>(existing ?? []);
-  const trimmed = role.trim();
-  if (trimmed) {
-    out.add(trimmed);
-  }
-  return [...out];
-}
-
-function mergeScopes(
-  existing: string[] | undefined,
-  scopes: readonly string[],
-): string[] | undefined {
-  const out = new Set<string>(existing ?? []);
-  for (const scope of scopes) {
-    const trimmed = scope.trim();
-    if (trimmed) {
-      out.add(trimmed);
-    }
-  }
-  return out.size > 0 ? [...out] : undefined;
-}
-
 function resolveBootstrapPath(baseDir?: string): string {
   return path.join(resolvePairingPaths(baseDir, "devices").dir, "bootstrap.json");
 }
@@ -116,19 +93,9 @@ export async function verifyDeviceBootstrapToken(params: {
       return { ok: false, reason: "bootstrap_token_invalid" };
     }
 
-    if (entry.deviceId && entry.deviceId !== deviceId) {
-      return { ok: false, reason: "bootstrap_token_invalid" };
-    }
-    if (entry.publicKey && entry.publicKey !== publicKey) {
-      return { ok: false, reason: "bootstrap_token_invalid" };
-    }
-
-    entry.deviceId = deviceId;
-    entry.publicKey = publicKey;
-    entry.roles = mergeRoles(entry.roles, role);
-    entry.scopes = mergeScopes(entry.scopes, params.scopes);
-    entry.lastUsedAtMs = Date.now();
-    state[entry.token] = entry;
+    // Bootstrap setup codes are single-use. Consume the record before returning
+    // success so the same token cannot be replayed to mutate a pending request.
+    delete state[entry.token];
     await persistState(state, params.baseDir);
     return { ok: true };
   });
diff --git a/src/infra/device-pairing.test.ts b/src/infra/device-pairing.test.ts
index 17f03df089a..ddf0826d048 100644
--- a/src/infra/device-pairing.test.ts
+++ b/src/infra/device-pairing.test.ts
@@ -2,6 +2,7 @@ import { mkdtemp, readFile, writeFile } from "node:fs/promises";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
 import { describe, expect, test } from "vitest";
+import { issueDeviceBootstrapToken, verifyDeviceBootstrapToken } from "./device-bootstrap.js";
 import {
   approveDevicePairing,
   clearDevicePairing,
@@ -146,6 +147,49 @@ describe("device pairing tokens", () => {
     expect(paired?.scopes).toEqual(["operator.read", "operator.write"]);
   });
 
+  test("rejects bootstrap token replay before pending scope escalation can be approved", async () => {
+    const baseDir = await mkdtemp(join(tmpdir(), "openclaw-device-pairing-"));
+    const issued = await issueDeviceBootstrapToken({ baseDir });
+
+    await expect(
+      verifyDeviceBootstrapToken({
+        token: issued.token,
+        deviceId: "device-1",
+        publicKey: "public-key-1",
+        role: "operator",
+        scopes: ["operator.read"],
+        baseDir,
+      }),
+    ).resolves.toEqual({ ok: true });
+
+    const first = await requestDevicePairing(
+      {
+        deviceId: "device-1",
+        publicKey: "public-key-1",
+        role: "operator",
+        scopes: ["operator.read"],
+      },
+      baseDir,
+    );
+
+    await expect(
+      verifyDeviceBootstrapToken({
+        token: issued.token,
+        deviceId: "device-1",
+        publicKey: "public-key-1",
+        role: "operator",
+        scopes: ["operator.admin"],
+        baseDir,
+      }),
+    ).resolves.toEqual({ ok: false, reason: "bootstrap_token_invalid" });
+
+    await approveDevicePairing(first.request.requestId, baseDir);
+    const paired = await getPairedDevice("device-1", baseDir);
+    expect(paired?.scopes).toEqual(["operator.read"]);
+    expect(paired?.approvedScopes).toEqual(["operator.read"]);
+    expect(paired?.tokens?.operator?.scopes).toEqual(["operator.read"]);
+  });
+
   test("generates base64url device tokens with 256-bit entropy output length", async () => {
     const baseDir = await mkdtemp(join(tmpdir(), "openclaw-device-pairing-"));
     await setupPairedOperatorDevice(baseDir, ["operator.admin"]);