CVE-2026-95292 in Chrome
Summary
by MITRE • 09/29/2026
Incorrect authorization in Safebrowsing in Google Chrome prior to 154.0.8037.57 allowed a remote attacker to bypass system access restrictions via crafted network traffic. (Chromium security severity: Low)
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Analysis
by VulDB Data Team • 09/29/2026
The vulnerability identified as an incorrect authorization flaw within the Safe Browsing component of Google Chrome, specifically affecting versions prior to 154.0.8037.57, represents a significant deviation from expected access control protocols. This issue stems from a logic error in how the browser validates permissions when processing network requests associated with safe browsing checks. The core technical flaw lies in the failure of the authorization mechanism to properly enforce restrictions on specific system resources or API endpoints during the validation process. When a remote attacker crafts malicious network traffic designed to exploit this gap, they can trick the Safe Browsing service into performing actions that require higher privileges than those granted by the current user context or application sandbox. This bypass allows the execution of operations that should be restricted, effectively undermining the security boundaries established by the browser's architecture.
From a technical perspective, this vulnerability is categorized under CWE-269, which denotes Improper Privilege Management. The attacker leverages crafted network packets to trigger specific code paths within the Safe Browsing module where authorization checks are either skipped or incorrectly evaluated. By manipulating these inputs, the remote party can escalate their effective privileges within the context of the browser process. Although Chromium classified this issue with a low security severity rating, indicating that it may not lead directly to full system compromise in all scenarios, the ability to bypass access restrictions remains a critical concern for maintaining application integrity and user privacy. The flaw highlights potential weaknesses in how internal components communicate and validate requests against established policy rules.
The operational impact of this vulnerability is primarily centered on the erosion of trust in the browser's security model. An attacker who successfully exploits this condition could potentially access sensitive data or perform unauthorized actions that are normally protected by system-level restrictions. This might include accessing local files, modifying browser settings, or interacting with other components in ways intended to be blocked. While the low severity rating suggests limited immediate exploitability for high-impact attacks such as arbitrary code execution, it still poses a risk to confidentiality and integrity. Users relying on Chrome's safe browsing features may find their security posture weakened if an attacker can manipulate these checks to hide malicious activity or gain unauthorized access to protected resources.
Mitigation strategies focus heavily on the immediate application of vendor-provided updates. Administrators should ensure that all instances of Google Chrome are upgraded to version 154.0.8037.57 or later, where this authorization logic has been corrected and properly enforced. In environments where patching is not immediately feasible, network-level controls such as firewalls or intrusion detection systems can be configured to monitor for anomalous traffic patterns associated with safe browsing endpoints that deviate from normal behavior. Additionally, enforcing strict content security policies and limiting the privileges of browser processes through sandboxing techniques can help contain potential exploitation attempts. Continuous monitoring and adherence to industry standards like MITRE ATT&CK technique T1078, which covers Valid Accounts and Access Manipulation, are recommended to detect any signs of unauthorized privilege escalation or access control bypasses in real-time.