Improper access control in OpenClaw - CVE-2026-28392

 

Improper access control in OpenClaw - CVE-2026-28392

Published: May 4, 2026


Vulnerability identifier: #VU129480
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-28392
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: OpenClaw
Affected software:
OpenClaw

Detailed vulnerability description

The vulnerability allows a remote user to execute privileged slash commands.

The vulnerability exists due to improper access control in the Slack slash-command handler when processing direct messages with dmPolicy=open. A remote user can send a direct message containing a slash command to execute privileged slash commands.

Only deployments with Slack direct messages enabled and channels.slack.dm.policy set to open are vulnerable.


How to mitigate CVE-2026-28392

Install security update from vendor's website.

Sources