CVE-2026-113034 in Chrome
Summary
by MITRE • 10/21/2026
Memory corruption in FileSystem in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
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Analysis
by VulDB Data Team • 10/22/2026
The vulnerability identified as CVE-2023-XXXX, affecting Google Chrome prior to version 156.0.8078.47, represents a critical memory corruption flaw within the browser's FileSystem component. This defect allows for arbitrary code execution by remote attackers through specially crafted HTML pages. The severity of this vulnerability is classified as Medium by Chromium security standards, yet its potential impact on system integrity remains significant due to the nature of memory corruption exploits which can bypass standard sandboxing mechanisms if not properly contained.
Memory corruption vulnerabilities typically arise from improper handling of data structures in memory, leading to conditions such as buffer overflows, use-after-free errors, or heap sprays. In this specific instance, the FileSystem module failed to correctly validate or manage memory allocations associated with file system operations triggered by web content. When a user visits a maliciously crafted HTML page, the browser attempts to process file-related requests that exploit these invalid memory states. The attacker crafts input data designed to overwrite adjacent memory regions or corrupt heap metadata, thereby gaining control over program execution flow.
The operational impact of this vulnerability is severe because it enables remote code execution within the context of the Chrome sandbox. Although modern browsers employ robust sandboxing techniques to limit the damage caused by exploits, a successful exploitation can potentially escape these restrictions depending on the specific memory corruption type and available exploit primitives. An attacker could leverage this flaw to execute arbitrary commands, install malware, steal sensitive data such as cookies or session tokens, or pivot further into connected networks if the browser is running with elevated privileges.
This vulnerability aligns closely with Common Weakness Enumeration (CWE) categories related to memory safety issues, particularly CWE-120 Buffer Overflow without description of bounds and CWE-416 Use After Free. These weaknesses are frequently targeted in real-world attacks because they provide reliable mechanisms for controlling instruction pointers or returning addresses within a process's address space. The exploitation vector is classified under MITRE ATT&CK technique T1189 Drive-by Compromise, where victims are lured to visit malicious web pages that automatically trigger the exploit without requiring user interaction beyond navigation.
Mitigation strategies primarily involve updating Google Chrome to version 156.0.8078.47 or later, which includes patches addressing these memory management flaws within the FileSystem component. Organizations should enforce automated update policies for all endpoints running affected browser versions to minimize exposure windows. Additionally, deploying advanced endpoint detection and response solutions can help identify suspicious behaviors associated with exploit attempts, such as unusual process creation patterns or unexpected network connections originating from browser processes. Users are advised to exercise caution when visiting untrusted websites and consider enabling additional security features like site isolation and strict content security policies where applicable.