Description
OpenClaw versions prior to 2026.2.25 contain an authentication hardening gap in browser-origin WebSocket clients that allows attackers to bypass origin checks and auth throttling on loopback deployments. An attacker can trick a user into opening a malicious webpage and perform password brute-force attacks against the gateway to establish an authenticated operator session and invoke control-plane methods.
Problem types
CWE-307 Improper Restriction of Excessive Authentication Attempts
Product status
Any version before 2026.2.25
2026.2.25 (semver)
Credits
luz-oasis
References
github.com/...enclaw/security/advisories/GHSA-jmmg-jqc7-5qf4 (GitHub Security Advisory (GHSA-jmmg-jqc7-5qf4))
github.com/...ommit/c736f11a16d6bc27ea62a0fe40fffae4cb071fdb (Patch Commit)
www.vulncheck.com/...-origin-websocket-authentication-bypass (VulnCheck Advisory: OpenClaw < 2026.2.25 - Password Brute-Force via Browser-Origin WebSocket Authentication Bypass)