Authorization Bypass in OpenClaw via Message Mutation

Executive Summary

CVE-2026-62191 is an authorization bypass vulnerability in OpenClaw versions 2026.6.6 before 2026.6.9. The issue occurs in the message mutation handling component, where lower-trust callers can perform actions that should require stronger authorization checks.

Attackers can exploit misconfigured input paths to skip requester authorization, allowing them to execute privileged operations. This vulnerability is limited to a specific feature and configuration, meaning it only affects systems where the affected feature is enabled and reachable.

• The vulnerability does not alter OpenClaw's trusted-operator model, so authenticated Gateway operators, plugins, and local execution surfaces remain trusted unless separate security boundaries are crossed.
• The weakness is classified under CWE-862 (Missing Authorization) and CWE-863 (Incorrect Authorization).

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Detection Guidance

Detecting this vulnerability requires checking if your OpenClaw version is affected and verifying the configuration of the message mutation feature.

• Check the installed OpenClaw version. If it is between 2026.6.6 and 2026.6.8 (excluding 2026.6.9), the system is vulnerable.
• Review OpenClaw configuration files or logs to determine if the message mutation feature is enabled and accessible. Look for settings related to input paths or authorization checks for this feature.
• Monitor network traffic or logs for unusual access patterns to the message mutation feature, particularly from lower-trust users or unexpected input paths.

No specific commands are provided in the resources, but you can use standard system inspection tools to verify the OpenClaw version and configuration. For example:

• Use package managers or version checks (e.g., `openclaw --version` or inspecting installation directories) to confirm the OpenClaw version.
• Inspect configuration files (e.g., `grep -r "message_mutation" /etc/openclaw/`) to see if the feature is enabled.

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Impact Analysis

If you are using an affected version of OpenClaw (2026.6.6 to 2026.6.8), this vulnerability could allow attackers with lower trust or access to perform unauthorized actions that should require stronger authorization.

• The primary impact is unauthorized data modification (integrity impact), as indicated by the CVSS score (VI:H in CVSS 4.0).
• The vulnerability does not directly affect confidentiality or availability, but it could lead to further exploitation if combined with other vulnerabilities or misconfigurations.
• The risk depends on your configuration and whether lower-trust input can reach the affected feature. If the feature is disabled or restricted to trusted operators, the impact may be limited.

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Compliance Impact

This vulnerability could impact compliance with standards and regulations that require strict access control and authorization mechanisms, such as GDPR and HIPAA.

• GDPR: Unauthorized data modification could lead to violations of data integrity and security requirements under GDPR, particularly Article 5 (principles relating to processing of personal data) and Article 32 (security of processing).
• HIPAA: If OpenClaw is used in a healthcare environment to handle protected health information (PHI), this vulnerability could result in unauthorized access or modification of PHI, violating the HIPAA Security Rule (45 CFR Part 164, Subpart C).
• Other standards like ISO 27001 or NIST SP 800-53 may also be affected, as they require proper authorization controls to protect sensitive data.

To maintain compliance, organizations should apply the recommended mitigations, such as upgrading to the patched version (2026.6.9) or restricting access to the affected feature.

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Mitigation Strategies

The following steps can be taken to mitigate the vulnerability:

• Upgrade OpenClaw to version 2026.6.9 or later, as this version contains the patch for the vulnerability.
• Restrict the affected message mutation feature to trusted operators only. Ensure that lower-trust users cannot access or configure input paths leading to this feature.
• Disable the message mutation feature if it is not necessary for your operations.
• Apply general hardening measures, such as narrowing channel and tool allowlists to limit exposure.
• Avoid sharing OpenClaw Gateways between untrusted users to prevent unauthorized access to privileged operations.

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