CVE-2026-28469: OpenClaw

Overview

A critical security vulnerability has been identified in the OpenClaw platform’s Google Chat monitor component. This flaw could allow an attacker to reroute security alerts and data to an unauthorized account, bypassing critical security controls.

Vulnerability Explained

In simple terms, the vulnerability exists in how OpenClaw handles incoming alert messages (called webhooks) from Google Chat. When multiple OpenClaw customer accounts are configured to receive alerts at the same web address, the software can incorrectly route an incoming message to the wrong account. This happens due to a flaw in the “first-match” logic used to verify these requests.

Imagine a postal service that, upon receiving a letter for “Apartment 5B,” simply delivers it to the first “Apartment 5” it finds in the building, regardless of the building’s actual street address. Similarly, this bug causes a security alert intended for one company’s OpenClaw account to be processed under another company’s security policies and permissions.

Potential Impact

The impact of this vulnerability is severe. A successful exploit could allow an attacker to:

• Bypass Security Policies: Security alerts (like intrusion attempts or data leaks) could be processed under the wrong account’s rules, potentially causing them to be ignored or hidden from the legitimate security team.
• Gain Unauthorized Access to Data: Sensitive information contained within these alert messages could be disclosed to an unauthorized party.
• Disrupt Security Monitoring: Critical alerts could be misrouted and lost, creating a blind spot in an organization’s security defenses and delaying response to real incidents.

This vulnerability received a CVSS score of 9.8 (CRITICAL) due to the low attack complexity and high impact on confidentiality, integrity, and availability.

Remediation and Mitigation

Immediate Action Required:

1. Upgrade: All users of OpenClaw must immediately upgrade to version 2026.2.14 or later. This version contains the necessary patch to properly validate and route webhook requests to the correct account context.
2. Verify Configuration: After upgrading, administrators should audit their Google Chat monitor webhook configurations to ensure all endpoints are uniquely defined and functioning as intended.

Temporary Mitigation (If Upgrade is Delayed): If an immediate upgrade is not possible, consider the following temporary workarounds while prioritizing the patch:

• Isolate Webhook Paths: Review and reconfigure webhook targets to ensure no two accounts or critical systems share an identical incoming webhook URL path.
• Increase Monitoring: Closely monitor alert logs and investigation queues for any unexpected gaps in alerts or the appearance of alerts from unfamiliar sources.

You should apply the patch as soon as possible, as the temporary measures do not fully eliminate the risk of exploitation.