CVE-2026-41386: OpenClaw Privilege Escalation Vulnerability

CVE-2026-41386 Overview

CVE-2026-41386 is a privilege escalation vulnerability in OpenClaw versions prior to 2026.3.22. The vulnerability exists because bootstrap setup codes are not properly bound to intended device roles and scopes during the pairing process. This allows attackers to exploit the first-use device pairing mechanism to escalate privileges beyond their intended role and scope, potentially gaining unauthorized access to system functions and data.

Critical Impact
Attackers can exploit unbound bootstrap setup codes during device pairing to escalate privileges, gaining unauthorized access beyond their intended role and scope.

Affected Products

OpenClaw versions prior to 2026.3.22

Discovery Timeline

2026-04-28 - CVE-2026-41386 published to NVD
2026-04-28 - Last updated in NVD database

Technical Details for CVE-2026-41386

Vulnerability Analysis

This vulnerability is classified under CWE-648 (Incorrect Use of Privileged APIs). The core issue lies in the device pairing bootstrap process where setup codes lack proper binding to specific device roles and authorization scopes. When a device initiates the first-use pairing sequence, the authentication mechanism fails to validate or enforce role constraints, allowing an attacker to claim elevated privileges.

The network-accessible attack vector means that exploitation can occur remotely during the device pairing window. The successful exploitation results in high confidentiality and integrity impact, as attackers can access sensitive data and modify system configurations beyond their authorized scope.

Root Cause

The root cause is the absence of role and scope binding for bootstrap setup codes in the device pairing workflow. Prior to the patch, the device-pair extension and device-bootstrap infrastructure did not define or enforce role constraints such as SETUP_CODE_ROLES or scope limitations during the pairing process. This oversight allowed any device completing the pairing process to assume roles and scopes that were not explicitly authorized.

Attack Vector

The attack is network-based and targets the device pairing process during first-use initialization. An attacker positioned to interact with the OpenClaw pairing endpoint can:

Intercept or initiate a device pairing request
Exploit the unbound setup code to specify elevated roles
Complete pairing with privileges beyond intended authorization
Access restricted functionality and data using the escalated privileges

The security patch introduces proper role and scope binding as shown in the following code changes:

typescript

const DEFAULT_GATEWAY_PORT = 18789;
+const SETUP_CODE_ROLES = ["node"] as const;
+const SETUP_CODE_SCOPES: string[] = [];

type DevicePairPluginConfig = {
  publicUrl?: string;

Source: GitHub Commit Update

The patch also adds scope normalization to the bootstrap process:

typescript

import path from "node:path";
+import { normalizeDeviceAuthScopes } from "../shared/device-auth.js";
import { resolvePairingPaths } from "./pairing-files.js";
import {
  createAsyncLock,

Source: GitHub Commit Update

Detection Methods for CVE-2026-41386

Indicators of Compromise

Devices paired with elevated roles (e.g., non-"node" roles) that were not explicitly authorized
Unusual access patterns from recently paired devices attempting to access privileged APIs
Device authentication logs showing scope assignments inconsistent with expected configurations

Detection Strategies

Monitor device pairing events for anomalous role assignments during bootstrap
Audit device authentication records to identify scope assignments that deviate from the "node" profile
Implement logging for all device-bootstrap and device-pair operations to capture role and scope values

Monitoring Recommendations

Enable verbose logging in the extensions/device-pair/ module to capture pairing requests and role assignments
Set up alerts for devices attempting to access APIs outside their expected scope
Review recent device pairings if running vulnerable versions to identify potential exploitation

How to Mitigate CVE-2026-41386

Immediate Actions Required

Upgrade OpenClaw to version 2026.3.22 or later immediately
Audit all devices paired while running vulnerable versions for unexpected role or scope assignments
Consider re-pairing devices from vulnerable installations to ensure proper role binding

Patch Information

The vulnerability is addressed in OpenClaw version 2026.3.22. The fix introduces constant definitions for SETUP_CODE_ROLES and SETUP_CODE_SCOPES to explicitly bind bootstrap setup codes to the "node" profile, and adds scope normalization via the normalizeDeviceAuthScopes function in the device bootstrap module.

For detailed patch information, see:

Workarounds

Restrict network access to the device pairing endpoint to trusted networks only
Disable device pairing functionality if not actively required
Implement network-level controls to limit which systems can initiate pairing requests

bash

# Example: Restrict pairing endpoint access via firewall
iptables -A INPUT -p tcp --dport 18789 -s 10.0.0.0/8 -j ACCEPT
iptables -A INPUT -p tcp --dport 18789 -j DROP