CVE-2026-17881 in Chrome
Summary
by MITRE • 07/30/2026
Integer overflow in WebXR in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: Medium)
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Analysis
by VulDB Data Team • 07/30/2026
This vulnerability represents a critical integer overflow condition within Google Chrome's WebXR implementation that could be exploited by remote attackers to bypass sandbox protections and execute arbitrary code. The flaw exists in the browser's handling of WebXR APIs, which are designed to enable immersive virtual and augmented reality experiences through web applications. When processing crafted HTML pages containing malicious WebXR content, the integer overflow occurs during memory allocation or buffer size calculations, potentially leading to memory corruption that can be leveraged for privilege escalation.
The technical nature of this vulnerability stems from inadequate input validation within Chrome's WebXR subsystem where integer values representing memory allocations or buffer sizes are not properly checked for overflow conditions. This allows attackers to manipulate these values into causing unexpected behavior in the browser's memory management system. The Chromium security severity rating of Medium indicates the complexity of exploitation required, but the potential impact remains severe as it can bypass sandbox protections that normally isolate web content from the underlying operating system. The vulnerability specifically affects Chrome versions prior to 151.0.7922.72, suggesting this was a targeted fix for a class of memory corruption issues in the WebXR implementation.
From an operational perspective, this vulnerability creates significant risk for users who browse untrusted websites or encounter malicious web content that leverages WebXR capabilities. Attackers could craft HTML pages containing specially designed WebXR elements that trigger the integer overflow when processed by vulnerable Chrome versions. The sandbox escape capability means that successful exploitation could allow attackers to execute code with the privileges of the browser process, potentially leading to full system compromise. This aligns with attack patterns described in the ATT&CK framework under privilege escalation and defense evasion techniques where adversaries seek to bypass security boundaries.
The remediation approach requires immediate patching of Chrome installations to version 151.0.7922.72 or later, which includes fixes for the integer overflow conditions in WebXR processing. Organizations should implement comprehensive browser update management procedures to ensure all users have the latest security patches. Additional mitigations include enabling Chrome's built-in security features such as site isolation and sandboxing, while monitoring for suspicious WebXR content usage in network traffic. This vulnerability demonstrates the importance of input validation and proper integer handling in web browser implementations, aligning with CWE categories related to integer overflow and memory safety issues that are commonly exploited in browser-based attacks.