CVE-2026-113132 in Chrome
Summary
by MITRE • 10/21/2026
Memory corruption in DevTools in Google Chrome 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 described involves a memory corruption flaw within the DevTools component of Google Chrome, specifically affecting versions prior to 156.0.8078.47. This defect allows for potential arbitrary code execution by a remote attacker who can induce a victim to load a specially crafted HTML page. Although classified with a low security severity in Chromium's internal scoring system, the nature of memory corruption vulnerabilities often presents significant risks if exploited successfully within browser environments that rely on sandboxing mechanisms to isolate untrusted content from the host operating system.
Memory corruption issues typically arise when software reads or writes data beyond the boundaries of allocated memory buffers or manipulates pointers incorrectly. In the context of web browsers, such flaws can be triggered through complex interactions between JavaScript engines and native code components like DevTools. When an attacker crafts a malicious HTML page containing specific sequences designed to exploit these boundary violations, they may achieve control over program execution flow. This could lead to the injection and execution of arbitrary commands within the browser process context.
The operational impact centers on the potential bypassing of Chrome's sandbox protections. While modern browsers employ robust isolation techniques such as site-isolation and restricted permissions for renderer processes, a successful exploitation of this memory corruption vulnerability might allow an attacker to escape these constraints or escalate privileges within the compromised process. This could result in unauthorized access to sensitive data stored locally by the browser, interception of network traffic, or further lateral movement if additional vulnerabilities are present. The low severity rating suggests that either the exploitability is limited under normal conditions or the impact is constrained due to existing mitigations like DEP and ASLR, but it remains a critical concern for users who interact with untrusted web content regularly.
From an industry standards perspective, this vulnerability aligns closely with CWE-120 Buffer Copy without Checking Size of Input Classic Buffer Overflow or potentially CWE-787 Out-of-bounds Write depending on the specific mechanics observed during analysis. In terms of attack tactics, it relates to MITRE ATT&CK technique T1059 Command and Scripting Interpreter if code execution is achieved, and potentially T1211 Exploitation for Defense Evasion if used to bypass security controls. The scenario also touches upon initial access vectors where malicious web content serves as the delivery mechanism for exploitation attempts against end-user systems.
Mitigation strategies primarily involve ensuring that all instances of Google Chrome are updated to version 156.0.8078.47 or later, which contains patches addressing this specific memory management error. Administrators should enforce automatic update policies across organizational endpoints to minimize exposure windows. Additionally, users can reduce risk by disabling unnecessary browser features such as DevTools access for standard browsing sessions if not required, although this is often impractical due to its integral role in development workflows. Implementing strict content security policies and utilizing extensions that block potentially dangerous scripts or objects from untrusted sources can provide an additional layer of defense against exploitation attempts leveraging similar memory corruption techniques. Regular monitoring of browser update notifications and prompt application of patches remain the most effective defensive measures against such vulnerabilities.