CVE-2026-17961
Summary
by MITRE • 07/30/2026
Inappropriate implementation in Session in Google Chrome on Android prior to 151.0.7922.72 allowed a remote attacker to bypass navigation restrictions via a crafted HTML page. (Chromium security severity: Low)
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Analysis
by VulDB Data Team • 07/30/2026
This vulnerability stems from an insufficient implementation of session management mechanisms within the Chrome browser's Android version, specifically affecting releases prior to 151.0.7922.72. The flaw resides in how the browser handles navigation restrictions during session handling, creating a potential bypass mechanism that could be exploited by remote attackers. The issue manifests when a crafted HTML page attempts to manipulate session state boundaries, allowing unauthorized navigation paths that should have been restricted by the browser's security policies.
The technical implementation gap occurs within the browser's session tracking and navigation control systems where proper validation of navigation requests fails to adequately verify session integrity constraints. This allows malicious actors to craft HTML content that can circumvent intended security boundaries by exploiting inconsistencies in how session states are managed during page transitions and navigation events. The vulnerability operates at the application layer, specifically targeting the browser's session management subsystem rather than underlying network protocols or operating system components.
From an operational perspective, this low severity vulnerability enables remote attackers to potentially access restricted navigation paths within web sessions without proper authentication or authorization. While the impact is classified as low, it represents a bypass of intended security controls that could serve as a stepping stone for more sophisticated attacks. The vulnerability affects users who interact with malicious websites through Chrome on Android devices, potentially exposing them to unauthorized session manipulation and navigation redirection.
The flaw aligns with CWE-613 weakness category, which addresses inadequate session management and improper handling of session identifiers. From an attack perspective, this vulnerability maps to techniques described in the ATT&CK framework under T1071.001 for application layer protocol usage and potentially T1531 for lateral movement through session manipulation. Security professionals should note that while the severity is low, this represents a potential vector for privilege escalation or information disclosure when combined with other vulnerabilities.
Mitigation strategies include immediate updating of Chrome browsers to version 151.0.7922.72 or later, which contains the patched session management implementation. Organizations should also implement network monitoring to detect suspicious navigation patterns and consider additional browser hardening measures such as disabling unnecessary plugins and maintaining updated security policies. Regular security audits should verify proper session handling mechanisms are in place and monitor for similar implementation gaps across other browser components.