CVE-2026-76381 in MS Graph for Active Directory app for Splunk SOAR
Summary
by MITRE • 08/19/2026
In versions below 1.5.2 of the MS Graph for Active Directory app for Splunk SOAR, a user who holds a role with permission to run actions could expose a sensitive password by invoking the reset password action, because the action's temp_password parameter is not masked and is shown in cleartext in the user interface. The information disclosure is possible because the app does not mark the affected action parameter as a password. For more information see Run an action in Splunk SOAR (https://help.splunk.com/en/splunk-soar/soar-on-premises/use-splunk-soar-on-premises/8.6.0/use-the-command-line-interface-to-perform-tasks-in-splunk-soar-on-premises/run-an-action-in-splunk-soar-on-premises).
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Analysis
by VulDB Data Team • 08/20/2026
The vulnerability identified in versions of the MS Graph for Active Directory app for Splunk SOAR prior to version 1.5.2 represents a critical information disclosure flaw rooted in improper handling of sensitive credentials within the application's user interface and backend logic. This security defect specifically affects users who possess roles with permissions to execute actions, allowing them to inadvertently or intentionally expose sensitive authentication material. The core technical failure lies in the configuration of the reset password action parameter labeled temp_password. In a properly secured implementation, any field containing temporary credentials or secrets must be explicitly flagged as such by the application framework so that it is masked during display and logged securely. However, due to this misconfiguration, the app fails to mark the affected action parameter as a password type, resulting in the cleartext exposure of the generated temporary password within the user interface when the action is invoked.
From an operational perspective, this vulnerability compromises the confidentiality integrity required for identity management operations. When an administrator or automated process triggers the reset password function, the system generates a new temporary credential intended to be securely communicated to the end-user through out-of-band channels such as email or SMS. Instead of masking this value in the Splunk SOAR interface logs and execution history, the application renders it in plain text. This exposure means that any user with access to view action results, including potentially lower-privileged users who can see shared playbooks or have read access to certain dashboards, could observe these temporary passwords. In an enterprise environment where Splunk SOAR is used for automated incident response and identity lifecycle management, such leakage undermines the security boundary between administrative tools and sensitive credential stores, potentially facilitating unauthorized account takeover if a malicious insider exploits this visibility.
This flaw aligns with CWE-522, which classifies information exposure through insecurely stored credentials or passwords in application logs or user interfaces. The failure to mask sensitive data during execution is a direct violation of secure coding practices that mandate the obfuscation of secrets at all points of interaction within an application's lifecycle. Furthermore, this vulnerability can be contextualized within the MITRE ATT&CK framework under T1530, Data from Cloud Storage Object Discovery or more broadly as part of credential harvesting techniques where attackers seek to extract sensitive information from configuration files and logs. In the context of Splunk SOAR, it also relates to improper access control mechanisms that allow users with execution privileges to view data they should not be able to see, highlighting a gap in role-based access control enforcement regarding output sanitization.
To mitigate this vulnerability, organizations must immediately upgrade the MS Graph for Active Directory app for Splunk SOAR to version 1.5.2 or later, where the developers have addressed the parameter masking issue by correctly identifying the temp_password field as sensitive data requiring obfuscation in both UI displays and internal logs. In addition to upgrading, security teams should audit existing playbooks that utilize this action to ensure no temporary passwords were inadvertently logged during previous executions. It is also recommended to review Splunk SOAR role configurations to enforce strict least-privilege principles, ensuring that users who do not require visibility into credential generation processes are restricted from viewing detailed execution results for identity management actions. Regular security assessments of custom apps and integrations should include checks for proper parameter classification to prevent similar information disclosure flaws in other modules.