Attack Chain

1. An attacker conducts reconnaissance to identify applications or services that incorporate the vulnerable @openclaw/feishu npm package, specifically targeting versions <= 2026.6.6.
2. The attacker analyzes the application's configuration and the library's exposed functionalities to pinpoint "lower-trust caller" interaction points or "configured input paths" that utilize the vulnerable component.
3. A malicious input or API request is crafted, designed to interact with the @openclaw/feishu library's functions responsible for authorization, particularly those related to account disablement.
4. The crafted input is submitted to the vulnerable application, which then passes it to the @openclaw/feishu library.
5. Due to CVE-2026-62187, the library improperly processes the input, ignoring per-account disablement settings or failing to enforce stronger authorization/policy checks.
6. The application, under the influence of the bypassed authorization, executes unauthorized operations such as modifying data, accessing restricted resources, or triggering privileged functions.
7. The successful exploitation results in the attacker achieving their objective, which could include data manipulation, information disclosure, or service disruption within the compromised application.

Impact

The successful exploitation of CVE-2026-62187 can lead to significant unauthorized operations within applications utilizing the @openclaw/feishu package. Depending on the application's functionality and the privileges granted to the vulnerable component, attackers could modify critical data, access sensitive user or system information, or perform actions typically reserved for administrators. The NVD assigns a CVSS v3.1 base score of 8.1 (High), indicating a severe risk. While no specific victim count or targeted sectors are available, any organization deploying applications with the vulnerable package is at risk of data integrity loss, confidentiality breaches, or disruption of services due to unauthorized activity.

Recommendation

• Patch CVE-2026-62187 by upgrading the @openclaw/feishu npm package to version 2026.6.9 or later immediately.
• Review applications utilizing @openclaw/feishu for configurations that allow "lower-trust callers" or "configured input paths" to interact with sensitive functions, and implement additional layers of authorization.
• Monitor application logs for unusual activity originating from accounts that should be disabled or from callers with limited privileges, which could indicate exploitation of the authorization bypass vulnerability.