CVE-2026-113282
Summary
by MITRE • 10/21/2026
Use after free in Views in Google Chrome on on Mac prior to 156.0.8078.47 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
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Analysis
by VulDB Data Team • 10/21/2026
The vulnerability identified as a use-after-free condition within Google Chrome's Views component on macOS represents a critical memory safety flaw that undermines the browser's internal integrity mechanisms. This specific defect arises when an object is deallocated from memory but continues to be referenced by other parts of the application, leading to undefined behavior upon subsequent access. In the context of Chromium-based browsers, such errors are particularly dangerous because they can often be leveraged to achieve arbitrary code execution within the restricted sandbox environment that isolates web content from the host operating system. The severity is classified as medium by the Chromium security team, reflecting both the potential for exploitation and the existing mitigations in place, though it remains a significant risk vector for remote attackers targeting users on older versions of Chrome prior to version 156.0.8078.47.
From a technical perspective, use-after-free vulnerabilities typically occur when memory management logic fails to properly invalidate pointers after an object's lifetime has ended. When the browser processes a crafted HTML page containing malicious scripts or specially formatted assets, it may allocate resources for rendering views and subsequently free them due to state changes or garbage collection triggers. However, if subsequent operations attempt to interact with these freed memory regions without proper bounds checking or nullification of references, an attacker can manipulate the heap layout. This manipulation allows for the overwriting of critical data structures or the execution of arbitrary shellcode injected through the crafted page. The sandboxing architecture is designed to prevent such executions from affecting the broader system, but successful exploitation within the renderer process can lead to further privilege escalation attempts or complete compromise of the user's browsing session and potentially the underlying operating system if additional vulnerabilities are chained together.
The operational impact of this vulnerability extends beyond simple data corruption. An attacker who successfully exploits this flaw could execute arbitrary code inside the sandbox, which may allow them to bypass security controls such as same-origin policy restrictions, steal sensitive cookies or credentials stored in memory, and perform actions on behalf of the user without their consent. While the medium severity rating suggests that exploitation might require specific conditions or additional steps compared to high-severity issues, the ability to execute code remotely via a simple HTML page makes this a viable attack vector for drive-by download scenarios or targeted phishing campaigns. Users running versions prior to 156.0.8078.47 are exposed to these risks whenever they visit maliciously constructed websites that trigger the flawed memory handling logic within the Views component.
To mitigate this risk, it is imperative to update Google Chrome to version 156.0.8078.47 or later on macOS systems immediately. This patch includes fixes for the underlying memory management issues in the Views component, ensuring that freed objects are properly invalidated and cannot be accessed erroneously. Organizations should enforce automated browser update policies to ensure all endpoints remain protected against known vulnerabilities. Additionally, users can reduce their exposure by employing security extensions that block suspicious scripts or restricting JavaScript execution on untrusted sites where possible. From a classification standpoint, this vulnerability aligns with CWE-416: Use After Free and is relevant to the ATT&CK technique of Initial Access via Drive-by Compromise, highlighting the importance of maintaining up-to-date software defenses against web-based attack vectors.