CVE-2026-113145 in Chrome
Summary
by MITRE • 10/21/2026
Memory corruption in Messages in Google Chrome on on Android 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: Low)
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Analysis
by VulDB Data Team • 10/21/2026
The vulnerability identified involves a memory corruption flaw within the Messages component of Google Chrome on Android, specifically affecting versions prior to 156.0.8078.47. This defect represents a critical failure in how the browser handles data structures associated with message passing between different execution contexts or components. Memory corruption vulnerabilities are among the most dangerous classes of security flaws because they can lead to arbitrary code execution, privilege escalation, and complete system compromise if exploited effectively. In this instance, the flaw allows for potential exploitation through standard web technologies, specifically via a crafted HTML page that triggers the erroneous memory handling behavior within the browser engine.
From a technical perspective, such vulnerabilities typically arise from improper bounds checking, use-after-free conditions, or integer overflows during the processing of internal messages. When an attacker crafts a malicious webpage designed to interact with the Messages API or trigger specific rendering paths in Chrome for Android, they can manipulate memory allocation and deallocation processes. This manipulation results in writing data beyond allocated buffer boundaries or accessing freed memory regions. The severity is classified as Low by Chromium security standards, which often reflects the difficulty of exploitation within the browser's sandboxed environment rather than a lack of potential impact if other mitigating factors are bypassed.
The operational impact centers on the ability of a remote attacker to potentially execute arbitrary code inside the Chrome sandbox. While modern browsers employ robust sandboxing mechanisms that isolate renderer processes from the operating system and user data, successful exploitation could allow an attacker to break out of this isolation or perform actions within the context of the browser process. This could lead to unauthorized access to sensitive information stored by the browser, such as cookies, session tokens, or autofill data. Furthermore, if the sandbox is bypassed, it could result in full device compromise on Android devices running affected versions.
This vulnerability aligns with Common Weakness Enumeration (CWE) categories related to memory safety issues, particularly CWE-120 Buffer Overflow and CWE-416 Use After Free, depending on the specific nature of the corruption observed during analysis. In terms of attack vectors, it falls under ATT&CK techniques involving Web Application Attacks, specifically those that leverage client-side code execution or sandbox escape mechanisms. The reliance on a crafted HTML page indicates that this is primarily an internet-facing vulnerability requiring user interaction to load the malicious content, though social engineering may be employed to increase success rates.
Mitigation strategies focus heavily on timely patching and defense-in-depth measures. Users must update Google Chrome for Android to version 156.0.8078.47 or later immediately upon availability. This release contains specific fixes that address the memory handling logic within the Messages component, ensuring proper validation of data structures before processing. For organizations managing fleets of devices, enforcing automatic updates through mobile device management solutions is critical to reduce exposure windows. Additionally, enabling Chrome's built-in security features such as Site Isolation and Safe Browsing can provide additional layers of protection against exploitation attempts by restricting how web content interacts with system resources and blocking known malicious sites that might host exploit kits targeting this vulnerability.