CVE Catalog

CVE-2026-100527

MediumCVSS 5.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.35%

26th percentile - higher than 26% of all known CVEs

Summary

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.

Risk Assessment

Risk of disruption of browser extensions, potentially leading to service unavailability.

Recommendation

Update OpenClaw to version 2026.8.2 or later to fix the denial of service vulnerability.

Other vulnerabilities in OpenClaw

See all
Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS