OpenCTI up to 6.6.5 GrapQL improper authorization

Summaryinfo

A vulnerability classified as critical has been found in OpenCTI up to 6.6.5. Affected by this issue is the function NotificationLineNotificationMarkReadMutation/NotificationLineNotificationDeleteMutation of the component GrapQL. The manipulation leads to improper authorization. This vulnerability is traded as CVE-2025-46732. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in OpenCTI up to 6.6.5. It has been rated as critical. This issue affects the function NotificationLineNotificationMarkReadMutation/NotificationLineNotificationDeleteMutation of the component GrapQL. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

OpenCTI is an open source platform for managing cyber threat intelligence knowledge and observables. Prior to version 6.6.6, an IDOR vulnerability in the GrapQL `NotificationLineNotificationMarkReadMutation` and `NotificationLineNotificationDeleteMutation` mutations of OpenCTI allows an authenticated user to change the read status of a notification or delete a notification of another user in case he has knowledge of the UUID of the notification. When changing the read status of a notification, the user also receives the content of the notification they changed the read status of. Authenticated Users in OpenCTI can read, modify and delete notification of other users if they know the UUID of the notification. Version 6.6.6 fixes the issue.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2025-46732 since 04/28/2025. The exploitation is known to be easy. The attack may be initiated remotely. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1548.002 for this issue.

Upgrading to version 6.6.6 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

• OpenCTI

Version

• 6.6.0
• 6.6.1
• 6.6.2
• 6.6.3
• 6.6.4
• 6.6.5

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CPE 2.2info

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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