Improper access control in OpenClaw - CVE-2026-41358
Published: April 30, 2026
Vulnerability identifier: #VU128603
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-41358
CWE-ID: CWE-284
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 bypass sender access controls and introduce non-allowlisted Slack messages into the agent context.
The vulnerability exists due to improper access control in Slack thread starter and thread-history context handling when fetching thread context through the API. A remote user can reply in a thread with non-allowlisted messages to bypass sender access controls and introduce non-allowlisted Slack messages into the agent context.
This affects sender allowlist enforcement for Slack thread context and is not a direct channel authorization bypass.
How to mitigate CVE-2026-41358
Install security update from vendor's website.