CVE-2026-42439 OpenClaw < 2026.4.10 - SSRF Policy Bypass in Browser Tabs Action Routes

Medium 4.9 Published Updated

Attackers can bypass SSRF protections in OpenClaw to perform unauthorized tab navigation via the /tabs/action endpoint.

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-2026-42439?

CVE-2026-42439 is a medium-severity server-side request forgery vulnerability in Openclaw Openclaw, published on 5 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

OpenClaw before 2026.4.10 contains a server-side request forgery policy bypass vulnerability in the browser tabs action select and close routes. Attackers can bypass configured browser SSRF policy protections by exploiting the /tabs/action endpoint to perform unauthorized tab navigation operations.

Weakness: CWE-918, CWE-862

Which versions are affected by CVE-2026-42439?

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

PackageAffectedFixed in
openclaw npmAll versions2026.4.10
openclaw npmAll versions2026.4.10

Products include Openclaw Openclaw.

How do I fix CVE-2026-42439?

Upgrade openclaw to 2026.4.10 or later.

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

Is CVE-2026-42439 being exploited?

There is no known exploitation of CVE-2026-42439 in the wild and no public exploit code.

All Openclaw Openclaw vulnerabilities

Sources

Also known as GHSA-rj2p-j66c-mgqh, MINI-72fr-5gf4-x5q8.

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