CVE-2026-106224 in Chrome
Summary
by MITRE • 10/06/2026
Missing authorization in Google Lens in Google Chrome prior to 155.0.8059.39 allowed a remote attacker who had compromised the renderer process to obtain cross-origin data 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 missing authorization within Google Lens integrated into Google Chrome prior to version 155.0.8059.39 represents a significant breach in the browser's isolation mechanisms, specifically affecting the boundary between renderer processes and cross-origin data access. This flaw allows an attacker who has already achieved code execution or compromise of a renderer process to escalate their privileges by accessing sensitive information from other origins that should remain strictly isolated under normal browsing security models. The core technical issue lies in the failure of Google Lens to enforce proper authorization checks when interacting with web content, effectively bypassing the Same-Origin Policy which is fundamental to modern web security architecture.
From a technical perspective, this vulnerability exploits the trust relationship between different components within the Chromium engine. When an attacker compromises a renderer process through other means such as exploiting a separate memory corruption bug or injecting malicious script via cross-site scripting they can leverage the Google Lens functionality to request and retrieve data from origins that are not permitted under standard security constraints. The crafted HTML page serves as the delivery mechanism for this exploit, triggering the unauthorized access path within the lens service without requiring additional user interaction beyond initial navigation or automated execution depending on the specific attack vector employed by the adversary.
The operational impact of this vulnerability is severe because it undermines one of the primary defenses against data exfiltration in web browsers. By obtaining cross-origin data an attacker can potentially steal sensitive information such as session cookies personal identifiable information financial details or proprietary content hosted on different domains. This capability transforms a contained renderer compromise into a broader security incident where the isolation boundaries that protect users from malicious websites are effectively neutralized allowing for persistent and stealthy data theft without triggering typical browser security warnings or alerts.
This flaw aligns with CWE-269 which describes Improper Authorization indicating that the system failed to verify whether the requesting entity had appropriate permissions before granting access to protected resources. In terms of offensive security frameworks this behavior corresponds to techniques found in MITRE ATT&CK such as T1059 Command and Scripting Interpreter for initial execution within the renderer and potentially T1074 Data Staged or Local Data Collection depending on how the exfiltrated data is handled post-access it also relates to T1530 Data from Information Repositories if the cross-origin content involves stored web resources.
Mitigation strategies primarily involve updating Google Chrome to version 155.0.8059.39 or later where these authorization checks have been properly implemented and enforced within the Lens component. Organizations should ensure that automatic updates are enabled for all endpoints running affected versions of the browser to minimize exposure windows. Additionally security teams can implement network-level controls such as Content Security Policy headers on their own web applications to limit what external services like Google Lens can access even if a renderer is compromised reducing the blast radius of potential exploits until patches are fully deployed across the infrastructure.