CVE-2026-35636: Openclaw

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

OpenClaw versions 2026.3.11 through 2026.3.24 contain a session isolation bypass vulnerability where session_status resolves sessionId to canonical session keys before enforcing visibility checks. Sandboxed child sessions can exploit this to access parent or sibling sessions that should be blocked by explicit sessionKey restrictions.

Affected products

• Openclaw Openclaw: from 2026.3.11, before 2026.3.25 (fixed in 2026.3.25)

Published 2026-04-09. Last modified 2026-06-17.