CVE-2026-95282 in Chrome
Summary
by MITRE • 09/29/2026
Use after free in Platform in Google Chrome prior to 154.0.8037.57 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
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Analysis
by VulDB Data Team • 09/29/2026
The vulnerability identified as a use-after-free error within the Platform component of Google Chrome prior to version 154.0.8037.57 represents a critical memory management flaw that compromises the integrity of the browser's execution environment. This specific class of defect occurs when the application continues to reference a memory block after it has been freed, leading to undefined behavior that can be exploited by malicious actors. In this instance, the vulnerability resides in the core platform layer responsible for handling various system-level operations and resource management tasks within the Chromium engine. The severity is classified as high due to the potential for arbitrary code execution, which undermines the fundamental security model of modern web browsers.
The technical mechanism behind this exploitation involves a crafted HTML page that triggers specific JavaScript or DOM manipulation sequences designed to free an object while retaining a reference to it. When the browser attempts to access this dangling pointer, it may interpret corrupted data as valid instructions or memory addresses. This misinterpretation allows an attacker to control the flow of execution within the sandboxed process. The sandboxing architecture in Chrome is designed to isolate web content from the host operating system, limiting the damage a compromised page can cause. However, use-after-free vulnerabilities provide a pathway for attackers to escape this isolation by manipulating memory structures such as function pointers or virtual table entries, thereby achieving arbitrary code execution within the restricted context of the browser process.
From an operational perspective, successful exploitation allows a remote attacker to execute arbitrary commands on the victim's machine with the privileges of the current user. This can lead to data theft, installation of malware, or further lateral movement within a network if the compromised device is part of a larger infrastructure. The impact extends beyond immediate code execution as it erodes trust in the browser's ability to safely render untrusted content. Users relying on Chrome for sensitive activities such as online banking, corporate communications, or accessing confidential documents are at significant risk when visiting maliciously crafted websites that leverage this flaw.
This vulnerability aligns with CWE-416, which describes use after free errors where a pointer is used after its memory has been freed, often leading to crashes or security vulnerabilities. In terms of the MITRE ATT&CK framework, this exploit technique falls under Tactic 0002 Execution and specifically relates to techniques that involve exploiting software flaws for code execution, such as client-side exploitation through browser-based attacks. The attack vector is classified as remote with low complexity, requiring only user interaction in the form of visiting a malicious webpage or clicking on a link leading to one.
Mitigation strategies primarily focus on updating the browser to version 154.0.8037.57 or later, where Google has implemented fixes for this memory management issue. Organizations should enforce automatic update policies to ensure all endpoints are protected against known vulnerabilities in widely used software components. Additionally, deploying endpoint detection and response solutions can help identify suspicious processes spawned by browser instances that exhibit behaviors consistent with exploitation attempts. Security awareness training is also recommended to educate users about the risks of visiting untrusted websites, although technical controls remain the primary defense against such automated attacks.