Is CVE-2026-100527 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-100527?

CVE-2026-100527 has a CVSS v3 severity of MEDIUM (5.3).

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CVE-2026-100527

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.