CVE-2026-76384 in Attack Analyzer Connector
Summary
by MITRE • 08/20/2026
In versions below 2.2.1 of the Splunk Attack Analyzer Connector for Splunk SOAR, a user who holds a role with permission to run actions could expose a sensitive archive password by invoking either the detonate file or detonate url action, because the action's archive_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 Splunk Attack Analyzer Connector for Splunk SOAR versions prior to 2.2.1 represents a significant information disclosure flaw rooted in improper handling of sensitive credentials within the application's user interface logic. The core technical deficiency lies in the failure to classify and mask specific input parameters that contain high-value secrets, specifically archive passwords used during automated analysis tasks. When an authenticated user possessing permissions to execute actions invokes either the detonate file or detonate url functionality, the system processes these requests but fails to obfuscate the associated password parameter in the resulting output displayed to the operator. This oversight allows any individual with access to run such actions to view sensitive archive passwords in cleartext directly within the Splunk SOAR interface, bypassing standard security controls designed to protect credential material from unauthorized observation or interception through local screen sharing or session logging mechanisms.
From an operational perspective, this vulnerability enables a broad range of malicious activities depending on the scope of access held by the attacker. If an insider threat actor possesses even basic execution permissions within Splunk SOAR, they can systematically extract credentials for various archive formats used in security testing and incident response workflows. The exposure of these passwords facilitates unauthorized access to archived data that may contain proprietary intellectual property, personally identifiable information, or other regulated data types protected under standards such as GDPR or HIPAA. Furthermore, the leaked credentials could be leveraged by external attackers who have gained a foothold within the SOAR environment through phishing or exploitation of other vulnerabilities, allowing them to pivot into systems secured only by these compromised archive passwords. This scenario aligns with common attack patterns where adversaries seek to harvest secrets for lateral movement and data exfiltration, specifically mapping to techniques involving credential dumping from local system sources as defined in industry frameworks.
The technical classification of this flaw corresponds closely to CWE-256, which describes the storage or transmission of passwords in a cleartext format that is visible to unauthorized users, and CWE-798, regarding the use of hardcoded credentials, although here it manifests more specifically through improper masking rather than hardcoding. In terms of adversary behavior, this vulnerability supports ATT&CK technique T1003, which involves OS Credential Dumping, as well as T1528, Steal Application Access Tokens, if the exposed passwords grant access to broader application ecosystems. The root cause is a configuration or development error where the action parameter was not explicitly marked with security attributes that trigger automatic masking in the UI rendering engine of Splunk SOAR. This highlights a critical gap in secure coding practices for integrations and connectors within orchestration platforms, where sensitive fields must be rigorously identified and handled according to strict data protection policies regardless of their specific functional role.
Mitigation strategies primarily involve upgrading the affected software component immediately to version 2.2.1 or later, which addresses this issue by correctly implementing masking protocols for password parameters in both file detonation and URL detonation actions. Organizations should also review their Splunk SOAR instance configurations to ensure that all custom apps and connectors adhere to security best practices regarding credential handling. It is advisable to audit existing playbooks and action executions to determine if any sensitive data was exposed during the window of vulnerability, particularly focusing on logs or UI sessions where detonation actions were performed. Additionally, implementing strict role-based access control policies can limit the number of users with permission to run high-risk actions like file detonation, thereby reducing the attack surface for this specific information disclosure vector. Regular security assessments and code reviews focused on input validation and output encoding are essential to prevent similar vulnerabilities in future development cycles or third-party integrations.