CVE-2026-106412 in Chrome
Summary
by MITRE • 10/07/2026
Race condition in Core in Google Chrome on on Mac prior to 155.0.8059.39 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)
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Analysis
by VulDB Data Team • 10/07/2026
The vulnerability identified as CVE-2024-1768 represents a critical race condition within the core rendering engine of Google Chrome on macOS, specifically affecting versions prior to 5.0.8059.39. This flaw resides in the complex interplay between different components of the browser's architecture, where improper synchronization mechanisms allow for a window of opportunity that can be exploited by an attacker who has already achieved partial access to the system. The severity is classified as high within the Chromium security framework, indicating that successful exploitation could lead to significant compromise of user data and system integrity. Race conditions are particularly insidious because they rely on precise timing and concurrency issues that may not manifest under normal usage patterns but can be triggered reliably through crafted inputs in a controlled attack scenario.
The technical nature of this flaw involves a failure in the synchronization logic governing memory access or state transitions within the renderer process. When multiple threads or processes attempt to access shared resources simultaneously without adequate locking mechanisms, unpredictable behavior occurs. In the context of Chrome's multi-process architecture, the renderer process is designed to operate within a strict sandbox environment to limit the impact of any potential compromise. However, this race condition allows an attacker who has compromised the renderer process through social engineering tactics, such as tricking a user into visiting a malicious website with crafted HTML and JavaScript code, to bypass these safeguards. The exploit leverages the timing discrepancy to execute arbitrary code outside the confines of the sandbox, effectively escalating privileges from a restricted context to one with broader system access.
From an operational impact perspective, this vulnerability poses a severe risk to end-users who browse the web using affected versions of Chrome on macOS. An attacker can utilize social engineering techniques to lure victims into loading a specially crafted HTML page that triggers the race condition. Once triggered, the malicious code executes outside the sandbox, granting the attacker the ability to run arbitrary commands with the privileges of the user running the browser. This could lead to data exfiltration, installation of persistent malware, or further lateral movement within a network if the compromised machine is part of an enterprise environment. The reliance on social engineering highlights that while the technical flaw is severe, its exploitation also depends on human factors, making it a hybrid threat vector combining software vulnerability with psychological manipulation.
To mitigate this risk, users must immediately update Google Chrome to version 155.0.8059.39 or later, which contains patches addressing the synchronization issues in the core rendering engine. Organizations should enforce automated update policies to ensure all endpoints are running the latest secure versions of browser software. Additionally, implementing strict content security policies and restricting script execution on untrusted sites can reduce the attack surface available to social engineering campaigns. Security teams should also monitor for indicators of compromise associated with renderer process exploitation techniques, such as unusual memory access patterns or attempts to escape sandbox boundaries.
This vulnerability aligns with CWE-362, which describes concurrent execution race conditions where software performs multiple operations in an incorrect order due to a failure to synchronize actions. It is further contextualized by MITRE ATT&CK technique T1059, Command and Scripting Interpreter, as the exploitation involves executing arbitrary code within the operating system environment after escaping the browser sandbox. Understanding these classifications helps security professionals prioritize remediation efforts and enhance detection capabilities for similar concurrency-based exploits in other web browsers or applications that rely on complex multi-threaded architectures.