CVE-2026-53814 OpenClaw < 2026.5.20 - Privilege Escalation via Hook-Triggered CLI MCP Tool Authority

High 8.7 Published Updated

Attackers with valid hook tokens can escalate privileges to execute owner-only MCP tools and modify persistent state in OpenClaw.

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-2026-53814?

CVE-2026-53814 is a high-severity vulnerability in Openclaw Openclaw, published on 11 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

OpenClaw before 2026.5.20 contains a privilege escalation vulnerability where hook-triggered agent runs incorrectly receive owner-scoped MCP loopback authority instead of hook-appropriate scope. Attackers with a valid hook token can exploit the /hooks/agent endpoint to cause spawned CLI runtimes to access or invoke owner-only MCP tools, potentially executing privileged actions like persistent cron state modifications.

Weakness: CWE-266

Which versions are affected by CVE-2026-53814?

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

PackageAffectedFixed in
openclaw npmAll versions2026.5.20
openclaw npmAll versions2026.5.20

Products include Openclaw Openclaw.

How do I fix CVE-2026-53814?

Upgrade openclaw to 2026.5.20 or later.

Is CVE-2026-53814 being exploited?

There is no known exploitation of CVE-2026-53814 in the wild and no public exploit code.

All Openclaw Openclaw vulnerabilities

Sources

Also known as GHSA-6fvr-66p3-3qj4, MINI-7w77-q74p-r7h3.

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