CVE-2026-17670 in Chrome
Summary
by MITRE • 07/30/2026
Use after free in Views in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
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Analysis
by VulDB Data Team • 07/30/2026
This vulnerability represents a critical use-after-free condition within the Views component of Google Chrome, specifically affecting versions prior to 151.0.7922.72. The flaw occurs in the renderer process handling of graphical user interface elements, creating a scenario where memory that has been freed is subsequently accessed by malicious code. The vulnerability is classified as high severity by Chromium security standards due to its potential for sandbox escape exploitation. When an attacker successfully compromises the renderer process through a crafted HTML page, they can leverage this use-after-free condition to execute arbitrary code outside the intended sandbox boundaries.
The technical implementation of this vulnerability stems from improper memory management within Chrome's Views framework where objects are deallocated but references to them persist in memory structures. This creates a window where malicious code can manipulate the freed memory location, potentially allowing for arbitrary code execution or information disclosure. The attacker needs only to compromise the renderer process through a specially crafted web page to exploit this condition. The vulnerability demonstrates a classic memory safety issue that falls under CWE-416, which addresses use-after-free conditions in software implementations. This particular flaw enables attackers to bypass Chrome's security model by escaping from the restricted renderer sandbox environment.
The operational impact of this vulnerability extends beyond simple privilege escalation as it fundamentally undermines Chrome's security architecture. A successful exploitation can enable attackers to execute code with elevated privileges, potentially leading to full system compromise. The sandbox escape capability means that even if an attacker initially gains access through a web-based attack vector, they can break out of the isolated renderer process and gain broader access to the underlying operating system. This vulnerability affects all users running affected Chrome versions and represents a significant risk in environments where users may encounter malicious web content. The exploitability requires only a compromised renderer process, which can be achieved through various attack vectors including phishing, malicious advertisements, or drive-by downloads.
Mitigation strategies for this vulnerability include immediate upgrading to Chrome version 151.0.7922.72 or later where the use-after-free condition has been patched. Organizations should implement comprehensive patch management procedures to ensure all Chrome installations are updated promptly. Additional defensive measures include deploying web application firewalls, implementing content security policies, and utilizing sandboxing technologies beyond the default browser protections. The vulnerability highlights the importance of regular security audits and memory safety reviews in browser components, particularly those handling graphical user interface elements and window management functions. Security teams should also monitor for any related exploitation attempts in the wild and maintain updated threat intelligence feeds to detect potential abuse of this vulnerability across different attack scenarios and target environments.