CVE-2026-28472: Authentication Bypass in OpenClaw Gateway

The impact of CVE-2026-28472 is severe. An attacker can exploit this vulnerability to connect to the OpenClaw gateway without providing valid device authentication credentials. This unauthorized access could lead to a range of malicious activities, including data exfiltration, command execution within the gateway environment, and lateral movement to other systems connected to the gateway. The ability to bypass authentication effectively grants an attacker a foothold within the protected network, potentially compromising the entire system. This bypass is achieved by exploiting a flaw in the connect handshake where the presence of an auth.token is checked before validation of the shared secret, allowing a malicious client to masquerade as a legitimate device.

1. 予約済み2026-02-27
2. 公開日2026-02-17
3. 更新日2026-03-10
4. EPSS 更新日2026-03-23

The primary mitigation for CVE-2026-28472 is to upgrade OpenClaw to version 2026.2.2 or later. If an immediate upgrade is not feasible due to compatibility concerns or system downtime requirements, consider implementing temporary workarounds. While no direct WAF rules can prevent this, strict network segmentation limiting access to the gateway WebSocket endpoint can reduce the attack surface. Carefully review and restrict access to the gateway based on IP address or other network-based controls. After upgrading, verify the fix by attempting a WebSocket connection without providing a valid shared secret; the connection should be rejected.