CVE-2026-106415 in Chrome
Summary
by MITRE • 10/07/2026
Information leak in Enterprise in Google Chrome prior to 155.0.8059.39 allowed a remote attacker to leak sensitive information via a crafted HTML page. (Chromium security severity: Medium)
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Analysis
by VulDB Data Team • 10/07/2026
The vulnerability identified as an information leak within the Chromium-based enterprise environment of Google Chrome, specifically affecting versions prior to 155.0.8059.39, represents a significant risk to data confidentiality and user privacy. This flaw allows a remote attacker to extract sensitive information from web pages or applications running in the browser context through the use of a specially crafted HTML page. The severity is classified as medium by Chromium security standards, indicating that while exploitation requires specific conditions such as social engineering or drive-by download tactics, the potential impact on user data integrity and confidentiality is substantial enough to warrant immediate attention.
From a technical perspective, this vulnerability likely stems from improper handling of memory or state within the browser's rendering engine or JavaScript execution environment. Attackers can leverage crafted HTML pages that exploit race conditions, cross-origin policy bypasses, or incorrect isolation boundaries between different browsing contexts. By manipulating these internal states, an attacker can cause the browser to expose data intended for other tabs, extensions, or secure origins. This type of flaw often involves leaking memory contents, DOM elements, or sensitive API responses that should remain isolated from untrusted scripts. The attack vector typically relies on a victim visiting a malicious website designed to trigger the specific code path responsible for the information disclosure.
The operational impact of this vulnerability is primarily centered around data exfiltration and potential session hijacking if cookies or authentication tokens are exposed. In an enterprise setting, where employees often access sensitive corporate resources through their browsers, such leaks can lead to unauthorized access to internal systems, theft of intellectual property, or compromise of user credentials. The ability for a remote attacker to trigger this leak via a simple web page means that the attack surface is broad and accessible without requiring any local privileges on the victim's machine beyond having an active browser session. This makes it particularly dangerous in public Wi-Fi environments or when users are targeted by phishing campaigns designed to load malicious content into their browsing context.
To mitigate this risk, organizations must ensure that all instances of Google Chrome are updated to version 155.0.8059.39 or later as soon as possible. Enterprise administrators should enforce automatic update policies through group policy settings or mobile device management solutions to prevent users from remaining on vulnerable versions for extended periods. Additionally, implementing strict Content Security Policy headers and disabling unnecessary browser features can reduce the attack surface available to such exploits. Users should also be educated about the risks of visiting untrusted websites and using ad blockers or script-blocking extensions like NoScript to limit the execution capabilities of potentially malicious HTML pages.
This vulnerability aligns with CWE-200, which covers Information Exposure, where security-relevant information is disclosed without proper access controls. It also relates to ATT&CK technique T1537, specifically under the sub-technique for Communication Through Web Protocols if the exfiltration occurs via HTTP requests initiated by the malicious script. Understanding these mappings helps in configuring endpoint detection and response systems to monitor for anomalous network traffic patterns that may indicate successful exploitation of this information leak vulnerability.