Improper access control in OpenClaw - #VU125255
Published: April 8, 2026
Vulnerability identifier: #VU125255
CSH Severity: Medium
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to bypass the sandbox.
The vulnerability exists due to improper access control in heartbeat context inheritance when delivering heartbeat messages that inherit owner identity from node-originated exec completion. A remote user can trigger heartbeat delivery to bypass the sandbox.
Affected software
OpenClaw
Remediation
Install security update from vendor's website.
OpenClaw - update to 2026.3.31