CVE-2026-100527

Medium

Description

OpenClaw before 2026.8.2 contains a denial of service vulnerability in the Browser extension relay that allows unauthenticated network sources to exhaust pending-authentication capacity. Attackers can hold every pending slot by maintaining silent WebSocket upgrades, preventing paired extensions from completing Browser Relay Authentication v2.

SeverityMedium

CVSS5.3

Exploit probability—

ProductOpenClaw

PublishedSep 26, 2026

First seenSep 26, 2026

Weakness typeCWE-400Uncontrolled resource consumption

How to fix

Update

OpenClaw OpenClaw2026.8.2 or later

Vendor advisories

github.com/openclaw/openclaw/security/advisories/GHSA-m78m-7h3q-q938

Affected products

Product	Affected versions	Fixed in
OpenClaw OpenClaw	v < 2026.8.2	2026.8.2

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