CVE-2026-41381: OpenClaw Auth Bypass Vulnerability

CVE-2026-41381 Overview

CVE-2026-41381 is an access control bypass vulnerability (CWE-863: Incorrect Authorization) in OpenClaw before version 2026.3.31. The vulnerability exists in the Discord voice manager component, which fails to properly enforce channel-level member access allowlist restrictions. Attackers can send Discord voice ingress requests before channel allowlist authorization is performed, gaining unauthorized access to restricted voice channels.

Critical Impact
Unauthorized users can bypass voice channel access restrictions, potentially gaining access to private or restricted Discord voice channels managed by OpenClaw.

Affected Products

OpenClaw versions prior to 2026.3.31
Discord voice manager component in OpenClaw
Environments using channel-level allowlist restrictions for voice access control

Discovery Timeline

2026-04-28 - CVE-2026-41381 published to NVD
2026-04-28 - Last updated in NVD database

Technical Details for CVE-2026-41381

Vulnerability Analysis

The vulnerability stems from improper authorization sequencing in OpenClaw's Discord voice manager. When processing voice ingress requests, the application fails to enforce channel allowlist authorization checks before granting access to voice channels. This creates a race condition where attackers can establish voice connections before the access control mechanism has an opportunity to validate their membership against configured allowlists.

The flaw is classified as CWE-863 (Incorrect Authorization), indicating that while an authorization mechanism exists, it is not properly applied to all relevant code paths. In this case, the voice ingress pathway lacked integration with the existing allowlist authorization framework.

Root Cause

The root cause is missing authorization checks in the voice ingress code path. The Discord voice manager was processing voice channel connection requests without first calling the authorization functions that validate whether a user's roles are permitted by the channel's configured allowlist policy.

Attack Vector

The attack exploits the network-accessible Discord voice ingress endpoint. An attacker with low privileges (authenticated Discord user) can send voice channel connection requests to channels they should not have access to. By timing their request or exploiting the missing authorization gate, they can join restricted voice channels before the allowlist check would normally reject their access.

The attack requires:

A valid Discord account with access to the guild
Knowledge of the target channel ID
Ability to send voice ingress requests through the OpenClaw Discord integration

typescript

// Security patch adding authorization gate for voice ingress
// Source: https://github.com/openclaw/openclaw/commit/dba96e7507e0900f120e5e28e57755d69bf78759

+import type { Guild } from "@buape/carbon";
+import { resolveCommandAuthorizedFromAuthorizers } from "openclaw/plugin-sdk/command-auth";
+import { resolveOpenProviderRuntimeGroupPolicy } from "openclaw/plugin-sdk/config-runtime";
+import type { OpenClawConfig } from "openclaw/plugin-sdk/config-runtime";
+import type { DiscordAccountConfig } from "openclaw/plugin-sdk/config-runtime";
+import {
+  isDiscordGroupAllowedByPolicy,
+  resolveDiscordChannelConfigWithFallback,
+  resolveDiscordGuildEntry,
+  resolveDiscordMemberAccessState,
+  resolveDiscordOwnerAccess,
+} from "../monitor/allow-list.js";
+
+export async function authorizeDiscordVoiceIngress(params: {
+  cfg: OpenClawConfig;
+  discordConfig: DiscordAccountConfig;
+  groupPolicy?: "open" | "disabled" | "allowlist";
+  useAccessGroups?: boolean;
+  guild?: Guild<true> | Guild | null;
+  guildName?: string;
+  guildId: string;
+  channelId: string;
+  channelName?: string;
+  channelSlug: string;
+  parentId?: string;
+  parentName?: string;
+  parentSlug?: string;
+  scope?: "channel" | "thread";
+  channelLabel?: string;
+  memberRoleIds: string[];

The patch introduces a new authorizeDiscordVoiceIngress function that imports and integrates the existing allowlist authorization modules before processing voice channel access requests.

Detection Methods for CVE-2026-41381

Indicators of Compromise

Unexpected users joining restricted voice channels without proper role assignments
Voice channel access logs showing connections from users not on the channel allowlist
Anomalous voice ingress request patterns to protected channels

Detection Strategies

Monitor Discord voice channel join events and correlate with allowlist configurations
Audit voice channel access logs for users lacking appropriate role IDs
Implement logging at the voice ingress authorization layer to detect bypass attempts
Compare expected allowlist membership against actual voice channel participants

Monitoring Recommendations

Enable verbose logging for OpenClaw Discord voice manager operations
Set up alerts for voice channel joins by users outside configured allowlists
Review voice channel access patterns periodically for anomalies
Monitor for repeated voice ingress attempts to restricted channels

How to Mitigate CVE-2026-41381

Immediate Actions Required

Upgrade OpenClaw to version 2026.3.31 or later immediately
Audit voice channel access logs to identify potential unauthorized access
Review and validate current allowlist configurations for all restricted channels
Consider temporarily restricting voice channel access until the patch is applied

Patch Information

The vulnerability is fixed in OpenClaw version 2026.3.31. The patch introduces proper authorization gating by implementing the authorizeDiscordVoiceIngress function that validates member access against channel allowlists before processing voice ingress requests.

Detailed patch information is available in the GitHub Commit and the GitHub Security Advisory.

Workarounds

Disable voice channel functionality until the patch can be applied
Use Discord's native permission system as an additional layer of access control
Implement network-level restrictions to limit access to the OpenClaw Discord integration
Monitor and manually audit voice channel membership for sensitive channels

bash

# Update OpenClaw to patched version
npm update openclaw@2026.3.31

# Verify installed version
npm list openclaw