Input validation error in OpenClaw - CVE-2026-28466
Published: May 4, 2026
Vulnerability identifier: #VU129439
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-28466
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: OpenClaw
Affected software:
OpenClaw
OpenClaw
Detailed vulnerability description
The vulnerability allows a remote user to execute arbitrary code.
The vulnerability exists due to improper input validation in the gateway-to-node invocation path for the node.invoke method when forwarding user-controlled system.run parameters. A remote user can inject internal approval control fields into node.invoke parameters to execute arbitrary code.
Exploitation requires access to a gateway account or token and affects connected node hosts that support system.run.
How to mitigate CVE-2026-28466
Install security update from vendor's website.