Improper access control in OpenClaw - CVE-2026-35636
Published: May 1, 2026
Vulnerability identifier: #VU128743
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-35636
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to access restricted parent or sibling sessions.
The vulnerability exists due to improper access control in the session_status sessionId resolution logic when resolving a supplied sessionId to a canonical session key. A remote user can supply a crafted sessionId to access restricted parent or sibling sessions.
The issue affects sandboxed session-tree visibility checks.
Affected software
OpenClaw
How to mitigate CVE-2026-35636
Install security update from vendor's website.
OpenClaw - update to 2026.3.28 beta.1