Improper access control in OpenClaw - CVE-2026-27646
Published: April 8, 2026
Vulnerability identifier: #VU125133
CSH Severity: Low
CVSS v4: 6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-27646
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to initialize host-side ACP sessions.
The vulnerability exists due to improper access control in the /acp spawn command handler when handling sandboxed /acp spawn requests. A remote user can send a /acp spawn command to initialize host-side ACP sessions.
Exploitation requires an already authorized sender in a sandboxed session, and ACP must be enabled with a backend available.
Affected software
OpenClaw
How to mitigate CVE-2026-27646
Install security update from vendor's website.
OpenClaw - update to 2026.3.7