Resource Exhaustion Affecting openclaw package, versions <2026.8.1-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.28% (19th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-OPENCLAW-20373026
  • published2 Oct 2026
  • disclosed26 Sept 2026

Introduced: 26 Sep 2026

NewCVE-2026-100558  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade Minimos:latest openclaw to version 2026.8.1-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openclaw package and not the openclaw package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1