CVE-2026-41299 OpenClaw < 2026.3.28 - Client Identity Spoofing in chat.send Gateway Provenance Guard

High 7.1 Published Updated

Authenticated operators can spoof ACP identity labels and inject reserved provenance fields by manipulating WebSocket handshake metadata, bypassing authorization checks.

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-2026-41299?

CVE-2026-41299 is a high-severity authentication bypass vulnerability in Openclaw Openclaw, published on 20 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

OpenClaw before 2026.3.28 contains an authorization bypass vulnerability in the chat.send gateway method where ACP-only provenance fields are gated by self-declared client metadata from WebSocket handshake rather than verified authorization state. Authenticated operator clients can spoof ACP identity labels and inject reserved provenance fields intended only for the ACP bridge by manipulating client metadata during connection.

Weakness: CWE-807

Which versions are affected by CVE-2026-41299?

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

PackageAffectedFixed in
openclaw npmAll versions2026.3.28
openclaw npmAll versions2026.3.28

Products include Openclaw Openclaw.

How do I fix CVE-2026-41299?

Upgrade openclaw to 2026.3.28 or later.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-41299 being exploited?

There is no known exploitation of CVE-2026-41299 in the wild and no public exploit code.

All Openclaw Openclaw vulnerabilities

Sources

Also known as GHSA-6xg4-82hv-cp6f, MINI-7q2f-cjpx-rcvv.

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