Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| OpenClaw / OpenClaw | affected 0 before 2026.8.1; unaffected 2026.8.1 |
CWE
CWE-400
References
- https://github.com/openclaw/openclaw/security/advisories/GHSA-4r25-35qc-fr6j
- https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-resource-exhaustion-via-websocket-upgrade
ADP enrichment
No English description supplied.
No references supplied.