CVE-2026-43576 OpenClaw < 2026.4.5 - Second-hop SSRF via CDP /json/version WebSocket URL

Medium 4.9 Published Updated

Attackers can exploit unvalidated WebSocket URLs in OpenClaw to perform Server-Side Request Forgery, accessing internal resources or arbitrary hosts.

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-2026-43576?

CVE-2026-43576 is a medium-severity server-side request forgery vulnerability in Openclaw Openclaw, published on 6 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

OpenClaw before 2026.4.5 contains a server-side request forgery vulnerability in the CDP /json/version WebSocket endpoint that allows attackers to pivot to untrusted second-hop targets. The webSocketDebuggerUrl response field is not properly validated, enabling attackers to redirect connections to arbitrary hosts and perform SSRF-style attacks.

Weakness: CWE-918, CWE-601

Which versions are affected by CVE-2026-43576?

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

PackageAffectedFixed in
openclaw npmAll versions2026.4.5
openclaw npmAll versions2026.4.5

Products include Openclaw Openclaw.

How do I fix CVE-2026-43576?

Upgrade openclaw to 2026.4.5 or later.

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

Is CVE-2026-43576 being exploited?

There is no known exploitation of CVE-2026-43576 in the wild and no public exploit code.

All Openclaw Openclaw vulnerabilities

Sources

Also known as GHSA-f7fh-qg34-x2xh, MINI-32mq-v4qm-3c96, MINI-g3gq-pg5g-g56r.

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