CVE-2026-6011 OpenClaw assertPublicHostname web-fetch.ts server-side request forgery

Medium 6.3 Published 10 Apr 2026 Updated 10 Apr 2026

Remote attackers can exploit a server-side request forgery vulnerability in OpenClaw's web-fetch tool to access internal resources.

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

What is CVE-2026-6011?

CVE-2026-6011 is a medium-severity server-side request forgery vulnerability in Openclaw Openclaw, published on 10 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A weakness has been identified in OpenClaw up to 2026.1.26. Affected by this issue is some unknown functionality of the file src/agents/tools/web-fetch.ts of the component assertPublicHostname Handler. Executing a manipulation can lead to server-side request forgery. The attack can be executed remotely. This attack is characterized by high complexity. The exploitation is known to be difficult. The exploit has been made available to the public and could be used for attacks. Upgrading to version 2026.1.29 can resolve this issue. This patch is called b623557a2ec7e271bda003eb3ac33fbb2e218505. Upgrading the affected component is advised.

Weakness: CWE-918

Which versions are affected by CVE-2026-6011?

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

Package	Affected	Fixed in
`openclaw` npm	All versions	`2026.1.29`
`openclaw` npm	All versions	`2026.1.29`

Products include Openclaw Openclaw.

How do I fix CVE-2026-6011?

Upgrade openclaw to 2026.1.29 or later.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2026-6011 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-6011 exists.

All Openclaw Openclaw vulnerabilities

Sources

Also known as GHSA-52vj-fvrv-7q82.