CVE-2026-100558 — OpenClaw before 2026.8.1 Resource Exhaustion via WebSocket Upgrade
OpenClaw versions before 2026.8.1 contain a resource exhaustion vulnerability in the Gateway listener that allows unauthenticated clients to retain response sockets by sending W…
Published: 2026-09-26 · CVSS: 8.7 · CVSS 4.0
OpenClaw versions before 2026.8.1 contain a resource exhaustion vulnerability in the Gateway listener that allows unauthenticated clients to retain response sockets by sending WebSocket upgrade requests without matching connection semantics. Attackers can repeatedly send malformed upgrade requests to exhaust listener resources and cause denial of service without consuming the WebSocket pre-auth connection budget.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7