CVE-2026-43534: Openclaw

Critical severity, CVSS 9.8. EPSS: 0.3% chance of exploitation in the next 30 days.

OpenClaw before 2026.4.10 contains an input validation vulnerability that allows external hook metadata to be enqueued as trusted system events. Attackers can supply malicious hook names to escalate untrusted input into higher-trust agent context.

Affected products

• Openclaw Openclaw: before 2026.4.10 (fixed in 2026.4.10)

Published 2026-05-05. Last modified 2026-06-17.