diff --git a/server/src/__tests__/agent-permissions-routes.test.ts b/server/src/__tests__/agent-permissions-routes.test.ts
index 73ecd39e3b1..b8399138920 100644
--- a/server/src/__tests__/agent-permissions-routes.test.ts
+++ b/server/src/__tests__/agent-permissions-routes.test.ts
@@ -1594,6 +1594,25 @@ describe.sequential("agent permission routes", () => {
     expect(res.body.access.taskAssignSource).toBe("agent_creator");
   });
 
+  it("rejects CEO permission updates outside the caller company scope", async () => {
+    const app = await createApp({
+      type: "agent",
+      agentId: "ceo-agent",
+      companyId: "33333333-3333-4333-8333-333333333333",
+      runId: "run-1",
+      source: "agent_key",
+    });
+
+    const res = await requestApp(app, (baseUrl) => request(baseUrl)
+      .patch(`/api/agents/${agentId}/permissions`)
+      .send({ canCreateAgents: true, canAssignTasks: true }));
+
+    expect(res.status).toBe(403);
+    expect(res.body.error).toContain("another company");
+    expect(mockAgentService.updatePermissions).not.toHaveBeenCalled();
+    expect(mockAccessService.setPrincipalPermission).not.toHaveBeenCalled();
+  });
+
   it("exposes a dedicated agent route for the inbox mine view", async () => {
     mockIssueService.list.mockResolvedValue([
       {
diff --git a/server/src/__tests__/authorization-service.test.ts b/server/src/__tests__/authorization-service.test.ts
index 09b98af27b9..2c1dd29427d 100644
--- a/server/src/__tests__/authorization-service.test.ts
+++ b/server/src/__tests__/authorization-service.test.ts
@@ -1021,6 +1021,25 @@ describeEmbeddedPostgres("authorization service", () => {
     });
   });
 
+  it("denies active-checkout management outside the CEO caller company scope", async () => {
+    const sourceCompany = await createCompany(db, "CheckoutSource");
+    const targetCompany = await createCompany(db, "CheckoutTarget");
+    const actorAgent = await createAgent(db, sourceCompany.id, { role: "ceo" });
+    const targetAgent = await createAgent(db, targetCompany.id, { role: "engineer" });
+
+    const decision = await authorizationService(db).decide({
+      actor: { type: "agent", agentId: actorAgent.id, companyId: sourceCompany.id, source: "agent_jwt" },
+      action: "tasks:manage_active_checkouts",
+      resource: { type: "issue", companyId: targetCompany.id, assigneeAgentId: targetAgent.id },
+    });
+
+    expect(decision).toMatchObject({
+      allowed: false,
+      reason: "deny_company_boundary",
+    });
+    expect(decision.explanation).toContain("another company");
+  });
+
   it("allows scoped assignment inside a granted project and denies other projects", async () => {
     const company = await createCompany(db, "ProjectScope");
     const project = await createProject(db, company.id, "Allowed");
diff --git a/server/src/__tests__/openclaw-invite-prompt-route.test.ts b/server/src/__tests__/openclaw-invite-prompt-route.test.ts
index fd556ea176c..7904e275a35 100644
--- a/server/src/__tests__/openclaw-invite-prompt-route.test.ts
+++ b/server/src/__tests__/openclaw-invite-prompt-route.test.ts
@@ -173,6 +173,28 @@ describe.sequential("POST /companies/:companyId/openclaw/invite-prompt", () => {
     expect(res.body.error).toContain("Only CEO agents");
   });
 
+  it("rejects CEO agent callers outside the target company scope", async () => {
+    const db = createDbStub();
+    const app = createApp(
+      {
+        type: "agent",
+        agentId: "agent-1",
+        companyId: "company-2",
+        source: "agent_key",
+      },
+      db,
+    );
+
+    const res = await request(app)
+      .post("/api/companies/company-1/openclaw/invite-prompt")
+      .send({});
+
+    expect(res.status).toBe(403);
+    expect(res.body.error).toContain("another company");
+    expect(mockAgentService.getById).not.toHaveBeenCalled();
+    expect((db as any).__insertValues).not.toHaveBeenCalled();
+  });
+
   it("allows CEO agent callers and creates an agent-only invite", async () => {
     const db = createDbStub([companyBranding], [logoAsset]);
     mockAgentService.getById.mockResolvedValue({