Input validation error in OpenClaw - #VU126440
Published: April 17, 2026
Vulnerability identifier: #VU126440
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: N/A
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 attacker to perform server-side request forgery.
The vulnerability exists due to improper input validation in browser hostname validation when processing hostname navigation under restrictive policy. A remote attacker can use DNS rebinding to bypass hostname/IP resolution checks to perform server-side request forgery.
The issue occurs because the validated hostname or IP resolution can differ from the address ultimately used by Chromium.
Remediation
Install security update from vendor's website.