CVE-2026-17968
Summary
by MITRE • 07/30/2026
Uninitialized Use in WebXR in Google Chrome on Android prior to 151.0.7922.72 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: Low)
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Analysis
by VulDB Data Team • 07/30/2026
This vulnerability represents an uninitialized variable flaw within the WebXR implementation of Google Chrome on Android systems, specifically affecting versions prior to 151.0.7922.72. The issue falls under the category of information disclosure through memory exposure, where a remote attacker can craft a malicious HTML page to access potentially sensitive data from process memory. The vulnerability stems from improper initialization of variables within the WebXR API handling code, creating a scenario where uninitialized memory contents may be inadvertently exposed to web applications. This type of flaw is categorized as CWE-457: Use of Uninitialized Variable, which directly relates to the improper handling of memory states in software implementations.
The technical execution of this vulnerability involves leveraging the WebXR API's interaction with the browser's rendering and memory management systems. When a crafted HTML page loads with specific WebXR elements, the uninitialized variables within Chrome's Android implementation can contain residual data from previous operations or system memory fragments. This occurs because the application fails to properly initialize memory locations before using them, allowing attackers to potentially extract information about memory layout, previously processed data, or even sensitive system information. The low severity classification indicates that while the vulnerability can lead to information disclosure, it does not directly enable arbitrary code execution or privilege escalation.
The operational impact of this vulnerability extends beyond simple information leakage, as it can provide attackers with insights into the browser's internal memory structure and potentially aid in more sophisticated attacks. An attacker could use this information to better understand Chrome's memory management patterns, which might be leveraged in combination with other vulnerabilities to create more effective exploitation strategies. The Android-specific nature of this vulnerability means that mobile users are particularly at risk when visiting malicious websites or interacting with compromised web content. This represents a significant concern for privacy and security in mobile environments where users may access sensitive information through their browsers.
Mitigation strategies should prioritize immediate patching of affected Chrome versions to 151.0.7922.72 or later, which addresses the uninitialized variable handling within the WebXR implementation. System administrators and users should also implement additional protective measures such as enabling content security policies, utilizing browser security extensions, and maintaining awareness of suspicious web content. The vulnerability demonstrates the importance of proper memory initialization practices in browser implementations and highlights the need for comprehensive testing of API interactions. Organizations should consider monitoring for exploitation attempts related to this specific vulnerability and ensure that mobile device management policies include regular browser updates. This incident underscores the broader ATT&CK tactic of reconnaissance through information gathering, where initial access or information discovery can lead to more serious security compromises in the future.