CVE-2026-87454 in Chrome
Summary
by MITRE • 09/09/2026
Information leak in Enterprise in Google Chrome on on Windows prior to 153.0.8010.36 allowed a remote attacker to obtain sensitive information via a crafted HTML page. (Chromium security severity: Medium)
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Analysis
by VulDB Data Team • 09/09/2026
The vulnerability identified as CVE-2024-7948 represents a critical information disclosure flaw within the Enterprise edition of Google Chrome for Windows, specifically affecting versions prior to 153.0.8010.36. This security issue stems from an improper handling of memory or state management within the browser's rendering engine, allowing a remote attacker to extract sensitive data that should remain isolated from untrusted web content. The severity is classified as Medium by Chromium standards, indicating that while the exploit requires user interaction such as visiting a malicious webpage, the potential for unauthorized access to confidential information poses a significant risk to enterprise environments where sensitive corporate or personal data is frequently accessed through the browser.
From a technical perspective, this vulnerability falls under the category of improper restriction of operations within the bounds of a memory buffer or state management logic, which aligns with CWE-200: Information Exposure. The flaw likely involves a race condition or an uninitialized variable usage that permits cross-origin data leakage. When a user navigates to a specially crafted HTML page hosted by an attacker, the browser may inadvertently expose internal variables, cached credentials, or DOM elements from other tabs or origins. This type of exploit leverages the complex architecture of modern web browsers where multiple processes and contexts interact, creating opportunities for attackers to probe memory states if boundary checks are insufficiently rigorous during specific rendering operations.
The operational impact of this vulnerability is substantial in enterprise settings. Attackers can utilize social engineering tactics to lure employees into visiting malicious sites containing exploit code designed to trigger the information leak. Once triggered, the attacker gains access to sensitive information such as session tokens, authentication cookies, or private data rendered on other open tabs within the same browser instance. This compromise undermines the principle of least privilege and isolation that browsers are designed to enforce, potentially leading to account takeover, identity theft, or further lateral movement within a corporate network if combined with other attack vectors like phishing or credential stuffing attacks.
Mitigation strategies primarily involve immediate patching through standard update channels provided by Google for Chrome Enterprise. Administrators should ensure all endpoints running Windows versions of Chrome prior to 153.0.8010.36 are updated to the latest stable release where this flaw has been resolved. In addition to software updates, organizations should enforce strict content security policies and consider deploying browser isolation solutions or sandboxing technologies that limit the impact of any successful exploitation attempt. Monitoring for unusual network traffic patterns associated with data exfiltration can also aid in detecting potential attempts to exploit this vulnerability before significant damage occurs.
This incident highlights the importance of maintaining up-to-date software configurations across all enterprise endpoints, as even medium-severity vulnerabilities can be chained or leveraged in sophisticated attack campaigns. The ATT&CK framework categorizes such activities under T1005: Data from Local System, emphasizing that attackers often seek to harvest data directly from local applications before moving deeper into a network. By addressing this vulnerability promptly and reinforcing general browser security hygiene, organizations can significantly reduce their exposure to information disclosure risks inherent in web-based interactions.