Improper access control in OpenClaw - CVE-2026-35622
Published: May 1, 2026
Vulnerability identifier: #VU128754
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-35622
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 attacker to bypass webhook authentication.
The vulnerability exists due to improper access control in Google Chat app-url webhook verification when validating add-on principals. A remote attacker can send a webhook request using an add-on principal outside the intended deployment binding to bypass webhook authentication.
How to mitigate CVE-2026-35622
Install security update from vendor's website.