CVE-2026-62215: Openclaw Auth Bypass Vulnerability

CVE-2026-62215 Overview

CVE-2026-62215 is an authentication bypass vulnerability in OpenClaw versions before 2026.6.5. The flaw resides in the handling of HTTP Canvas responses, where lower-trust callers can forge trusted Agent-to-User Interface (A2UI) actions. Attackers submit crafted requests through configured input paths to bypass intended policy checks. This allows them to perform actions requiring stronger authorization than they legitimately hold. The issue maps to CWE-345: Insufficient Verification of Data Authenticity.

Critical Impact
Attackers with lower-trust access can forge trusted A2UI actions, bypassing OpenClaw authorization policies and executing operations reserved for higher-privileged callers.

Affected Products

OpenClaw (Node.js package) versions prior to 2026.6.5
Deployments exposing HTTP Canvas response handlers
Applications relying on OpenClaw A2UI policy enforcement

Discovery Timeline

2026-07-17 - CVE-2026-62215 published to NVD
2026-07-20 - Last updated in NVD database

Technical Details for CVE-2026-62215

Vulnerability Analysis

OpenClaw exposes an HTTP Canvas response channel that returns Agent-to-User Interface (A2UI) actions to callers. These actions are treated as trusted directives by downstream components and can trigger operations gated by policy checks. The vulnerability arises because OpenClaw does not sufficiently verify the authenticity of the response contents against the trust level of the originating caller.

A lower-trust client can submit a crafted request through configured input paths. OpenClaw processes the input and emits a Canvas response that carries A2UI actions attributed to a higher trust level. Downstream policy checks accept the forged actions and execute them. The result is an authentication bypass that lets attackers invoke privileged workflows without holding the required credentials.

The scope impact is notable because the forged actions cross a trust boundary. According to the VulnCheck advisory, attacks require user interaction to complete the flow, which raises exploitation complexity.

Root Cause

The root cause is missing verification of data authenticity on HTTP Canvas responses. OpenClaw trusts the A2UI action payload without validating that the caller producing it holds the authorization level implied by the action. The framework conflates request input paths with trust context, allowing lower-trust input to mint higher-trust directives.

Attack Vector

The vulnerability is exploited over the network. An attacker sends a crafted HTTP request to a configured OpenClaw input path. A victim user interacts with the resulting Canvas response, triggering the forged A2UI action. The action then executes with elevated authorization, bypassing intended policy checks. No credentials are required for the initial request.

No public proof-of-concept exploit is available at the time of publication. Refer to the GitHub Security Advisory GHSA-vr7j-7684-7gm5 for vendor-supplied technical detail.

Detection Methods for CVE-2026-62215

Indicators of Compromise

HTTP requests to OpenClaw input paths that produce Canvas responses containing A2UI actions inconsistent with the caller's authenticated trust level.
Successful execution of privileged A2UI actions originating from unauthenticated or low-privilege sessions.
Application logs showing policy-gated operations performed without a corresponding authorization event.

Detection Strategies

Review OpenClaw application logs for A2UI action executions where the source request lacked expected credentials or session context.
Correlate HTTP Canvas response emissions with the caller identity that triggered them and flag mismatches.
Baseline normal A2UI action patterns per user role and alert on deviations, particularly privileged action invocations from low-trust roles.

Monitoring Recommendations

Enable verbose request and response logging on OpenClaw endpoints handling Canvas responses.
Forward OpenClaw logs to a centralized analytics pipeline for cross-session correlation and anomaly identification.
Monitor for repeated crafted payloads targeting configured input paths after the CVE disclosure date.

How to Mitigate CVE-2026-62215

Immediate Actions Required

Upgrade OpenClaw to version 2026.6.5 or later across all deployments, including development and staging environments.
Inventory all services that embed the openclaw:openclaw Node.js package as a direct or transitive dependency.
Restrict network exposure of OpenClaw input paths to trusted clients until patching completes.

Patch Information

The fix is available in OpenClaw 2026.6.5. Full remediation details are published in the GitHub Security Advisory GHSA-vr7j-7684-7gm5. Vendors integrating OpenClaw should rebuild and redeploy dependent applications after upgrading.

Workarounds

Apply reverse-proxy authorization checks in front of OpenClaw input paths to reject requests that lack expected credentials.
Disable or gate HTTP Canvas response handlers on affected endpoints if the feature is not required.
Enforce user-interaction confirmation on any privileged A2UI action executed downstream of OpenClaw until the patch is deployed.

bash

# Upgrade OpenClaw to the patched release
npm install openclaw@2026.6.5

# Verify installed version
npm ls openclaw