CVE-2026-113008 in Chrome
Summary
by MITRE • 10/21/2026
Memory corruption in Transactions Platform 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: Medium)
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Analysis
by VulDB Data Team • 10/21/2026
The vulnerability identified within the Chromium-based Transactions Platform represents a critical memory corruption flaw that undermines the integrity of Google Chrome prior to version 156.0.8078.47. This specific component, which handles financial transactions and sensitive payment data processing within the browser environment, was found to contain an implementation error leading to improper memory management. The core technical issue involves a failure in bounds checking or type safety during the handling of transaction-related objects, allowing for heap-based buffer overflow or use-after-free conditions when parsing crafted input. Such memory corruption vulnerabilities are particularly dangerous because they can corrupt adjacent data structures in memory, potentially altering control flow and enabling an attacker to inject malicious payloads into the process space.
From a technical perspective, this flaw is classified under CWE-120 Buffer Copy without Checking Size of Input or CWE-416 Use After Free, depending on the specific mechanism exploited within the Transactions Platform codebase. The vulnerability allows for arbitrary read and write operations in memory, which serves as the foundational step for achieving remote code execution. Although Chrome employs a multi-process architecture with sandboxing to limit the impact of such exploits, the severity is rated as Medium because successful exploitation could potentially allow an attacker to escape the browser's security boundaries or execute code within the context of the privileged transaction handling process. The attack vector requires a user to visit a specially crafted HTML page that triggers the malformed memory operations through JavaScript interactions with the Transactions Platform APIs.
The operational impact of this vulnerability is significant due to the sensitive nature of the data processed by the affected component. If an attacker successfully exploits this flaw, they could execute arbitrary code inside the sandboxed environment, potentially leading to the exfiltration of financial credentials, session cookies, or other personally identifiable information stored within the browser's local storage and cookie jars. Furthermore, depending on how the exploit chain is constructed, it might facilitate further privilege escalation attacks if combined with additional vulnerabilities in the operating system or other browser components. The ability to execute code via a crafted HTML page means that drive-by download scenarios are possible, where an unsuspecting user could be compromised simply by loading a malicious webpage without any direct interaction beyond navigation.
Mitigation strategies primarily focus on immediate software updates and defensive browsing practices. Users must upgrade Google Chrome to version 156.0.8078.47 or later, as this release contains the necessary patches that enforce stricter memory safety checks within the Transactions Platform module. For organizations managing large fleets of devices, deploying automated patch management systems is essential to ensure timely remediation across all endpoints. Additionally, security teams should monitor for indicators of compromise related to unusual network traffic originating from browser processes or unexpected modifications to local storage files associated with financial applications. Implementing application whitelisting and restricting the execution of unsigned scripts can also provide an additional layer of defense against exploitation attempts targeting this specific vulnerability class.
In terms of industry standard mapping, this incident aligns with MITRE ATT&CK technique T1059 Command and Scripting Interpreter, specifically through JavaScript interpretation within a web context, as well as T1203 Exploitation for Client Execution. The memory corruption aspect directly correlates to CWE-787 Out-of-bounds Write or CWE-416 Use After Free, which are common root causes in browser-based exploits. Understanding these mappings helps security analysts prioritize response efforts and align remediation activities with broader threat intelligence frameworks. Continuous monitoring of Chromium project updates is crucial as similar vulnerabilities may be discovered in related components over time, requiring ongoing vigilance to maintain a robust security posture against evolving web-based attack vectors.