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.
Metrics
Affected Vendors & Products
References
History
Mon, 28 Sep 2026 18:30:00 +0000
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| Metrics |
ssvc
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Sat, 26 Sep 2026 02:30:00 +0000
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| Description | 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. | |
| Title | OpenClaw before 2026.8.1 Resource Exhaustion via WebSocket Upgrade | |
| First Time appeared |
Openclaw
Openclaw openclaw |
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| Weaknesses | CWE-400 | |
| CPEs | cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Openclaw
Openclaw openclaw |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-09-26T02:18:51.811Z
Updated: 2026-09-28T17:38:11.262Z
Reserved: 2026-09-26T01:02:38.348Z
Link: CVE-2026-100558
Updated: 2026-09-28T17:38:04.315Z
Status : Deferred
Published: 2026-09-26T03:17:02.533
Modified: 2026-09-28T18:17:12.803
Link: CVE-2026-100558
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