CVE-2026-116649 in Enforce
Summary
by MITRE • 10/27/2026
Tanium addressed an improper output sanitization vulnerability in Enforce.
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Analysis
by VulDB Data Team • 10/27/2026
The security flaw identified by Tanium within its Enforce platform constitutes a classic instance of Improper Output Handling, specifically categorized under CWE-79: Improper Neutralization of Input During Web Page Generation, commonly known as Cross-Site Scripting (XSS). This vulnerability arises from the application's failure to adequately sanitize or encode user-supplied data before rendering it in web-based interfaces. When an administrator or authorized user interacts with specific features of the Enforce console, malicious scripts embedded within input fields are not properly escaped by the backend processing logic. Consequently, these scripts are injected into the HTML response and executed directly in the victim's browser session under the context of the authenticated user.
The operational impact of this vulnerability is significant for organizations relying on Tanium Enforce for endpoint management and security operations. An attacker who can trick a legitimate administrator into clicking a crafted link or submitting malicious input through the interface could execute arbitrary JavaScript code within the trusted environment of the application. This execution context allows the adversary to perform actions such as stealing session cookies, capturing authentication tokens, performing actions on behalf of the victim without their knowledge, or redirecting the user to phishing sites designed to harvest credentials. Since Tanium Enforce typically holds high-privilege access over an organization's infrastructure, compromising a single administrative account can lead to broader system compromise and lateral movement within the network.
From a threat intelligence perspective, this vulnerability aligns with MITRE ATT&CK technique T1059: Command and Scripting Interpreter, specifically through browser-based execution vectors like JavaScript. It also relates to TA0003: Persistence if session cookies are stolen, allowing an attacker to maintain access even after the initial exploitation vector is mitigated. The lack of proper output sanitization indicates a gap in the secure software development lifecycle (SSDLC) practices employed during the coding or code review phases for this specific component of the Enforce platform.
To mitigate the risks associated with this vulnerability, Tanium has released patches and updates that enforce strict input validation and output encoding mechanisms. Organizations utilizing Tanium Enforce must immediately apply these security updates to ensure that all user inputs are correctly neutralized before being rendered in the browser environment. Additionally, administrators should implement Content Security Policy (CSP) headers where applicable to add an additional layer of defense against script execution. Regular auditing of web application firewalls and continuous monitoring for anomalous activity within the Enforce console can further reduce the attack surface and detect potential exploitation attempts in real-time.