CVE-2026-53818: Openclaw

Medium severity, CVSS 6.6. EPSS: 0.1% chance of exploitation in the next 30 days.

OpenClaw before 2026.4.24 contains an authorization bypass vulnerability in the MCP loopback feature that allows non-owner callers to skip owner-only tool policies and before-tool-call hooks. Attackers can invoke owner-only behavior through the affected loopback path to execute restricted tools when the feature is enabled and reachable.

Affected products

• Openclaw Openclaw: before 2026.4.24 (fixed in 2026.4.24)

Published 2026-06-11. Last modified 2026-06-17.