NVD HIGH: CVE-2026-100558 — OpenClaw versions before 2026.8.1 contain a resource exhaustion vulnerability in...

Saturday, September 26, 2026 at 03:17 AM UTC·Source: NIST NVD

Updated: Sunday, September 27, 2026 at 12:00 AM UTC

Executive Summary

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 co

Analysis

Indicators of Compromise (1)

CVE (1)

CVE-2026-100558

NVD MITRE CVE

Source Attribution

Originally published by NIST NVD on Sep 26, 2026. Verified by: NIST.

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