CVE-2026-9927: Chrome ANGLE Use-After-Free Remote Code Execution

Technical summary

CVE-2026-9927 is a use-after-free vulnerability (CWE-416) in ANGLE, Chrome's abstraction layer for graphics APIs. The flaw permits memory safety violations whereby freed memory is accessed after deallocation, leading to arbitrary code execution within the Chrome sandbox. The vulnerability requires user interaction (visiting a malicious page) but no authentication or elevated privileges. The attack surface is broad given Chrome's ubiquity as a web browser across all major operating systems.

Business impact

Exploitation enables arbitrary code execution in the context of a user's Chrome sandbox, potentially allowing theft of browsing data, session credentials, cached passwords, and local files accessible to the browser process. Organizations relying on Chrome for web applications should expect elevated risk if users are targeted with phishing emails or watering-hole attacks directing them to malicious sites. The sandboxing mechanism limits lateral movement but does not eliminate risk of sensitive data exfiltration.

Affected systems

Google Chrome versions prior to 148.0.7778.216 on Windows, macOS, and Linux are affected. Any system running a vulnerable Chrome version is at risk if a user can be directed to a malicious webpage. This includes enterprise deployments where Chrome is the standard browser and consumer users worldwide.

Exploitability

Exploitability is rated HIGH (CVSS 8.8) due to network-accessible attack vector, low complexity, and the requirement only for user interaction. No special privileges or system configuration is required. The attack is practical: an attacker needs only to host a crafted HTML page and drive traffic to it via phishing, compromised advertisements, or legitimate site compromise. The sandbox constraint reduces but does not eliminate the severity, as exfiltration of sensitive data and local code execution remain possible.

Remediation

Update Google Chrome to version 148.0.7778.216 or later on all affected systems. For organizations managing Chrome through Group Policy (Windows), Jamf (macOS), or Linux package managers, deploy patches through standard endpoint management tools. Verify patching completion across your fleet; prioritize systems whose users handle sensitive data or frequently visit untrusted sites. No workaround exists short of disabling or uninstalling Chrome.

Patch guidance

Google Chrome will auto-update on most systems, but verify completion within 24–48 hours by checking Chrome's About page (chrome://about) for the current version. Enterprise administrators should push Chrome 148.0.7778.216 or later through their management console (Google Admin Console, Jamf, or equivalent). Confirm patch deployment via endpoint detection and response (EDR) tools or asset inventory scans. For organizations with auto-update enabled, no manual intervention is required, but verification remains recommended.

Detection guidance

Monitor for Chrome process crashes or anomalous behavior following user visits to untrusted domains. EDR and browser isolation solutions should flag attempts to execute code with Chrome's privilege level. Check Chrome crash reports (chrome://crashes) and system event logs for suspicious process spawning. Network detection should focus on unusual outbound connections from Chrome processes following visits to known malicious or newly registered domains. Because exploitation occurs in-browser, traditional endpoint protection may not catch the initial memory corruption; behavior-based detection is most effective.

Why prioritize this

This vulnerability merits immediate patching due to its HIGH CVSS score (8.8), low exploitation complexity, broad platform coverage, and real-world attack feasibility. The use-after-free flaw in graphics rendering is a common attack vector exploited by sophisticated threat actors. Chrome's market dominance means millions of potential targets are exposed. The requirement for user interaction is low-friction; phishing and social engineering remain effective at scale.

Risk score, explained

The CVSS 3.1 score of 8.8 reflects a network-accessible, low-complexity attack requiring minimal user interaction to achieve high-impact outcomes (confidentiality, integrity, and availability compromise within the sandbox). The score appropriately captures the practical risk: while sandboxing limits damage, the ability to exfiltrate sensitive browser data and execute local code justifies the HIGH severity rating. Organizations should treat this as a critical patch in their vulnerability management workflow.

Frequently asked questions