CVE-2026-106241 in Chrome
Summary
by MITRE • 10/06/2026
Incorrect authorization in Search in Google Chrome on on Android prior to 155.0.8059.39 allowed a remote attacker leveraging social engineering to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
Be aware that VulDB is the high quality source for vulnerability data.
Analysis
by VulDB Data Team • 10/07/2026
The vulnerability identified as an incorrect authorization issue within Google Chrome on Android prior to version 155.0.8059.39 represents a significant breach in the browser's access control mechanisms, specifically affecting the search functionality. This flaw allows for unauthorized actions by bypassing expected permission checks, which is particularly dangerous given that browsers operate within strict sandbox environments designed to isolate web content from the underlying operating system and user data. The core technical failure lies in how the application validates user intent or context when processing search queries initiated through crafted HTML pages. Instead of strictly enforcing separation between privileged browser processes and untrusted web content, the vulnerability permits a remote attacker to manipulate these internal authorization states. This misconfiguration effectively weakens the boundary that prevents malicious scripts from escalating privileges beyond their intended scope, creating an avenue for code execution outside the protective sandbox layer.
From a technical perspective, this flaw aligns with CWE-269, which describes Improper Privilege Management, and more specifically relates to situations where access control decisions are not enforced correctly during specific operational flows such as search operations. The attack vector relies heavily on social engineering tactics, requiring the victim to interact with a maliciously crafted HTML page hosted by an attacker. Once loaded in the browser environment, this page exploits the authorization gap to trigger actions that should be restricted or require higher levels of verification. By leveraging these unchecked permissions, the attacker can execute arbitrary code within the context of the browser process but outside its sandboxed boundaries. This escalation is critical because it allows the malicious payload to interact with system resources and APIs that are normally inaccessible to standard web content, thereby compromising the integrity and confidentiality of the device's data.
The operational impact of this vulnerability extends beyond simple information disclosure or cross-site scripting scenarios typically associated with browser flaws. Successful exploitation enables a remote attacker to gain unauthorized access to sensitive user data stored on the Android device, including browsing history, saved passwords, cookies, and potentially other application-specific data depending on how deeply the sandbox breach penetrates. Furthermore, arbitrary code execution can lead to full device compromise if subsequent exploits are chained together or if the executed code interacts with vulnerable native libraries. This scenario is consistent with ATT&CK technique T1059, Command and Scripting Interpreter, where attackers use scripts to execute commands on a target system. The ability to run code outside the sandbox significantly increases the severity of the incident, as it undermines one of the primary defense-in-depth strategies employed by modern web browsers.
Mitigation for this vulnerability requires immediate action from users and administrators relying on Google Chrome on Android devices. The most effective remediation is to update the browser to version 155.0.8059.39 or later, where these authorization checks have been corrected to properly enforce sandbox boundaries during search operations. Until updates are applied, organizations should implement strict content security policies and consider deploying mobile device management solutions that restrict the installation of unverified applications or limit browser capabilities in high-risk environments. Additionally, user awareness training is crucial to mitigate the social engineering aspect of this attack; users must be educated to recognize suspicious links and avoid interacting with unfamiliar web pages that request unusual permissions or exhibit abnormal behavior. Regular security audits and penetration testing can also help identify similar authorization flaws before they are exploited by malicious actors in the wild.