OCTOBER 9, 2026
Live Feed
Back to database
Case File

CVE-2026-100558

HIGH · CVSS 7.5 EPSS 0.28% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-26 · Last synced 2026-10-09

CyberRota Analysis

AI-Generated

OpenClaw versions prior to 2026.8.1 are susceptible to a resource exhaustion vulnerability in the Gateway listener, enabling unauthenticated clients to send malformed WebSocket upgrade requests that can deplete listener resources. This can lead to a denial of service, as attackers can exploit this flaw without affecting the WebSocket pre-auth connection budget. Organizations using affected versions should prioritize patching to mitigate the risk of service disruption.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-100558
Severity
HIGH
CVSS
7.5
EPSS
0.28%

Original NVD 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.