CVE-2026-62227: Openclaw Openclaw SSRF Vulnerability

CVE-2026-62227 Overview

CVE-2026-62227 is a Server-Side Request Forgery (SSRF) vulnerability in OpenClaw affecting versions 2026.4.14 through versions before 2026.5.26. The flaw resides in browser snapshot routes that fail to validate post-navigation destinations. Authenticated attackers with lower-trust access can bypass OpenClaw policy checks to reach network destinations that should have been blocked. The issue is tracked under [CWE-918] Server-Side Request Forgery and is fixed in OpenClaw 2026.5.26.

Critical Impact
Authenticated attackers can leverage the browser snapshot feature to force server-side requests to restricted internal or external network destinations, bypassing OpenClaw's URL policy controls.

Affected Products

OpenClaw 2026.4.14 through versions before 2026.5.26
OpenClaw distributions running on Node.js
Deployments exposing browser snapshot routes to lower-trust users

Discovery Timeline

2026-07-17 - CVE-2026-62227 published to NVD
2026-07-21 - Last updated in NVD database

Technical Details for CVE-2026-62227

Vulnerability Analysis

OpenClaw exposes browser snapshot routes that render remote URLs server-side. The application enforces URL policies at the initial request stage but does not re-validate destinations after client-side navigation events occur within the headless browser. This gap allows attackers to submit an initially compliant URL that redirects or navigates the browser to a restricted destination. The server issues the follow-up request without re-checking the target against configured allowlists or blocklists.

Because the request originates from the OpenClaw server, it inherits the server's network position. Attackers can reach internal services, metadata endpoints, or other network resources that external clients cannot access directly. The vulnerability requires authenticated access with low privileges but no user interaction to exploit.

Root Cause

The root cause is missing post-navigation destination validation in the browser snapshot workflow. OpenClaw checks the caller-supplied URL against its policy layer but treats subsequent navigations initiated by the loaded page as trusted. Redirects, JavaScript-driven navigation, and meta-refresh events proceed without re-entering the policy check, violating the assumption that the final fetched resource matches the vetted input.

Attack Vector

An authenticated attacker submits a snapshot request pointing at an attacker-controlled URL that passes OpenClaw's initial policy check. That page issues a redirect or client-side navigation to an internal target such as a cloud metadata service, an internal admin endpoint, or a service on a private network segment. The OpenClaw server follows the navigation and returns the rendered content or side-effect results to the attacker. Refer to the VulnCheck SSRF Advisory for additional technical detail.

No verified public proof-of-concept code is available at this time. See the GitHub Security Advisory for the vendor's technical description.

Detection Methods for CVE-2026-62227

Indicators of Compromise

Outbound requests from OpenClaw servers to RFC1918 addresses, 169.254.169.254, 127.0.0.1, or other loopback and link-local ranges
Browser snapshot job logs showing redirect chains that terminate at internal hostnames
Snapshot output artifacts containing content from cloud metadata endpoints or internal admin panels

Detection Strategies

Inspect OpenClaw application and proxy logs for snapshot requests whose final URL differs from the submitted URL and resolves to an internal destination
Correlate authenticated OpenClaw user sessions with anomalous outbound HTTP requests from the render worker
Alert on repeated snapshot requests that produce redirects to non-public IP space or cloud metadata services

Monitoring Recommendations

Route OpenClaw egress through an authenticated forward proxy that logs source job identifiers and denies internal destinations
Ingest OpenClaw application logs and egress proxy logs into a centralized analytics platform for correlation with user identity
Baseline normal snapshot destination distributions and alert on statistical deviations toward internal ranges

How to Mitigate CVE-2026-62227

Immediate Actions Required

Upgrade OpenClaw to version 2026.5.26 or later, which enforces post-navigation destination validation
Restrict access to browser snapshot routes to trusted users until the upgrade is deployed
Enforce network-layer egress filtering on OpenClaw workers to block traffic to internal ranges and metadata endpoints

Patch Information

The vendor released a fix in OpenClaw 2026.5.26. Details are published in the GitHub Security Advisory GHSA-2x93-h3hg-2xfp. Operators running versions 2026.4.14 through any release prior to 2026.5.26 should upgrade immediately.

Workarounds

Place OpenClaw render workers on an isolated network segment that cannot route to internal services or cloud metadata endpoints
Configure an egress proxy that denies RFC1918, loopback, and link-local destinations for snapshot traffic
Disable or gate the browser snapshot routes behind higher-trust roles until patching is complete

bash

# Example egress restriction for OpenClaw render workers (iptables)
iptables -A OUTPUT -d 169.254.169.254 -j REJECT
iptables -A OUTPUT -d 10.0.0.0/8 -j REJECT
iptables -A OUTPUT -d 172.16.0.0/12 -j REJECT
iptables -A OUTPUT -d 192.168.0.0/16 -j REJECT
iptables -A OUTPUT -d 127.0.0.0/8 -j REJECT