CVE-2026-53821 OpenClaw < 2026.5.18 - Scope Elevation in trusted-proxy Control UI WebSocket

High 8.7 Published Updated

Unpaired or restricted clients can elevate privileges to admin scope via WebSocket, allowing execution of admin-gated RPCs.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-53821?

CVE-2026-53821 is a high-severity vulnerability in Openclaw Openclaw, published on 12 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

OpenClaw before 2026.5.18 accepts WebSocket client-declared operator scopes before binding to server-approved pairing or trusted-proxy authorization baseline. Unpaired or restricted trusted-proxy Control UI clients can obtain cached operator.admin authority on live WebSocket connections to execute admin-gated Gateway RPCs.

Weakness: CWE-862

Which versions are affected by CVE-2026-53821?

2 open source packages ship an affected version, including openclaw. It affects 1 product.

PackageAffectedFixed in
openclaw npmAll versions2026.5.18
openclaw npmAll versions2026.5.18

Products include Openclaw Openclaw.

How do I fix CVE-2026-53821?

Upgrade openclaw to 2026.5.18 or later.

Is CVE-2026-53821 being exploited?

There is no known exploitation of CVE-2026-53821 in the wild and no public exploit code.

All Openclaw Openclaw vulnerabilities

Sources

Also known as GHSA-qjpc-qf9m-xwmr, GHSA-vcg8-6gf2-cg9j, MINI-f857-632r-jrwf, MINI-mpfw-xj8w-42h8.

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