CVE-2026-32011 OpenClaw < 2026.3.2 - Slow-Request Denial of Service via Pre-Auth Webhook Body Parsing

High 8.7 Published Updated

Unauthenticated attackers can cause denial of service in OpenClaw by sending slow or oversized request bodies to webhook handlers before authentication.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-32011?

CVE-2026-32011 is a high-severity denial of service vulnerability in Openclaw Openclaw, published on 19 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

OpenClaw versions prior to 2026.3.2 contain a denial of service vulnerability in webhook handlers for BlueBubbles and Google Chat that parse request bodies before performing authentication and signature validation. Unauthenticated attackers can exploit this by sending slow or oversized request bodies to exhaust parser resources and degrade service availability.

Weakness: CWE-770

Which versions are affected by CVE-2026-32011?

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

PackageAffectedFixed in
openclaw npmAll versions2026.3.2
openclaw npmAll versions2026.3.2

Products include Openclaw Openclaw.

How do I fix CVE-2026-32011?

Upgrade openclaw to 2026.3.2 or later.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-32011 being exploited?

There is no known exploitation of CVE-2026-32011 in the wild and no public exploit code.

All Openclaw Openclaw vulnerabilities

Sources

Also known as GHSA-x4vp-4235-65hg, MINI-h8m4-hhjj-34xr.

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