CVE-2026-19141 in Chrome
Summary
by MITRE • 08/07/2026
Use after free in Resources in Google Chrome on Android prior to 151.0.7922.109 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
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Analysis
by VulDB Data Team • 08/07/2026
This vulnerability represents a critical use-after-free condition in Google Chrome's resource management system on Android platforms, specifically affecting versions prior to 151.0.7922.109. The flaw occurs within the renderer process handling of memory resources, where improper memory deallocation followed by subsequent access creates an exploitable scenario that could enable attackers to escape the browser's security sandbox. The vulnerability is classified as high severity by Chromium security standards, indicating significant risk to system integrity and user data protection.
The technical implementation involves a classic use-after-free attack pattern where allocated memory resources are freed but not properly invalidated, allowing subsequent code execution to access already deallocated memory regions. This particular flaw exists in the Android-specific resource handling mechanisms that manage how Chrome processes and manages memory during HTML page rendering operations. Attackers who have already compromised the renderer process can leverage this vulnerability to execute arbitrary code with elevated privileges, effectively bypassing the sandbox isolation that typically protects users from malicious web content.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it fundamentally undermines the security model that Chrome employs on Android devices. When an attacker successfully exploits this use-after-free condition, they can potentially gain access to system resources and user data that should remain protected within the sandboxed environment. This type of vulnerability directly relates to CWE-416, which specifically addresses use-after-free conditions in software implementations. The attack vector requires an initial compromise of the renderer process, but once achieved, the attacker can leverage this flaw to expand their control beyond what would normally be permitted by Chrome's security architecture.
The exploitation scenario typically involves crafting a malicious HTML page that triggers specific memory allocation and deallocation patterns within Chrome's resource management system. This allows attackers to predict memory layout and potentially inject or manipulate code in freed memory regions, enabling full sandbox escape capabilities. From an ATT&CK perspective, this vulnerability maps to techniques involving privilege escalation and sandbox evasion, specifically targeting the T1059 command and control execution patterns combined with T1484 privilege escalation methods that leverage system-level vulnerabilities.
Mitigation strategies require immediate patching of Chrome versions to 151.0.7922.109 or later, which implements proper memory management controls and prevents the use-after-free condition from occurring. Additionally, users should maintain updated operating system versions and employ network security monitoring to detect potential exploitation attempts. Organizations should implement browser hardening measures including sandbox enforcement, privilege separation, and regular security assessments of their Chrome deployment environments to prevent successful exploitation of this class of vulnerabilities that could lead to complete system compromise.