Medium severity5.3NVD Advisory· Published Sep 26, 2026

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.

Affected products

OpenClaw/Openclawllm-fuzzy
Range: <2026.8.2

Patches

Vulnerability mechanics

References

github.com/openclaw/openclaw/security/advisories/GHSA-m78m-7h3q-q938nvd
www.vulncheck.com/advisories/openclaw-before-2026.8.2-denial-of-service-via-browser-relaynvd

News mentions

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cvss	0.345
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000