CVE-2025-15288: Tanium Interact Auth Bypass Vulnerability

CVE-2025-15288 Overview

CVE-2025-15288 is an improper access controls vulnerability identified in Tanium Interact. This security flaw falls under CWE-863 (Incorrect Authorization), which occurs when a software system does not perform or incorrectly performs authorization checks, potentially allowing unauthorized users to access protected resources or functionality.

Critical Impact

This vulnerability may allow authenticated attackers to access information beyond their intended authorization level through network-based attacks against Tanium Interact deployments.

Affected Products

• Tanium Interact (specific versions detailed in vendor advisory)

Discovery Timeline

• January 29, 2026 - CVE CVE-2025-15288 published to NVD
• January 29, 2026 - Last updated in NVD database

Technical Details for CVE-2025-15288

Vulnerability Analysis

This vulnerability stems from improper access control mechanisms within Tanium Interact. The flaw allows an authenticated user with low privileges to potentially access confidential information they should not be authorized to view. While the attack requires network access and involves high complexity to exploit successfully, the vulnerability represents a failure in the authorization layer that governs resource access within the application.

The impact is limited to confidentiality concerns, with no direct effect on system integrity or availability. The attack does not require user interaction, but the high complexity requirement suggests that specific conditions or timing must be met for successful exploitation.

Root Cause

The root cause of CVE-2025-15288 lies in CWE-863: Incorrect Authorization. This weakness class occurs when a product does not verify that sufficient permissions exist for a user to access a resource or perform an action. In the context of Tanium Interact, the authorization checks appear to be insufficient or improperly implemented, allowing low-privileged authenticated users to access data outside their authorized scope.

Attack Vector

The attack vector for this vulnerability is network-based, requiring the attacker to have authenticated access to the Tanium Interact system with at least low-level privileges. The attacker must leverage network access to exploit the improper access controls, though the high attack complexity indicates that exploitation is not straightforward and may require specific conditions or knowledge of the target environment.

The vulnerability mechanism involves bypassing intended authorization boundaries within the Interact component. Due to the improper access controls, authenticated users may be able to query or retrieve information that should be restricted based on their privilege level. For detailed technical information, refer to the Tanium Security Advisory TAN-2025-034.

Detection Methods for CVE-2025-15288

Indicators of Compromise

• Unusual query patterns from low-privileged user accounts accessing resources outside their normal scope
• Anomalous data access logs showing users retrieving information inconsistent with their role assignments
• Authentication logs showing legitimate users accessing unauthorized data segments

Detection Strategies

• Monitor Tanium Interact audit logs for access pattern anomalies from authenticated users
• Implement user behavior analytics to detect privilege boundary violations
• Review authorization failure logs for patterns indicating systematic access control testing

Monitoring Recommendations

• Enable comprehensive logging for all Tanium Interact access requests and authorization decisions
• Configure alerts for access attempts to sensitive data by users with low privilege levels
• Regularly audit user permissions and access patterns within Tanium Interact

How to Mitigate CVE-2025-15288

Immediate Actions Required

• Review the Tanium Security Advisory TAN-2025-034 for specific remediation guidance
• Audit current user permissions and access levels within Tanium Interact
• Implement additional monitoring for unauthorized access attempts until patches can be applied

Patch Information

Tanium has addressed this vulnerability. Organizations should consult the Tanium Security Advisory TAN-2025-034 for specific patch details, affected versions, and upgrade instructions. Contact Tanium support for access to the security update.

Workarounds

• Apply the principle of least privilege to all Tanium Interact user accounts
• Segment network access to Tanium Interact to reduce the attack surface
• Implement additional access control layers at the network level while awaiting patch deployment
• Review and restrict user roles to minimize the impact of potential access control bypasses

# Review Tanium Interact user permissions and access logs
# Consult Tanium documentation for specific configuration commands
# Implement network-level access restrictions as an additional control layer