CVE-2026-19141: 
Google Chrome vulnerability analysis and mitigation

CVE-2026-19141 is a use-after-free vulnerability in the Resources component of Google Chrome on Android that allows a remote attacker who has already compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. It affects all versions of Google Chrome prior to 151.0.7922.109 on Android. The vulnerability was reported internally by Google on 2026-05-15 and publicly disclosed on 2026-08-06 as part of the Chrome 151 stable channel update. It carries a CVSS v3.1 base score of 8.3 (High) with a changed scope, reflecting its cross-boundary impact (Chrome Releases, Feedly).

The vulnerability is classified as CWE-416 (Use After Free), occurring in Chrome's Resources subsystem on Android. A use-after-free flaw arises when a memory object is freed but a dangling pointer to it remains accessible; an attacker can manipulate the freed memory region to redirect execution flow. Exploitation requires the attacker to have already compromised the renderer process (e.g., via a separate renderer bug), after which a crafted HTML page can trigger the UAF condition in the Resources component to escape the Chrome sandbox. The Chromium issue tracker reference is bug #513602949, though full technical details remain restricted pending broad user patching (Chrome Releases).

Successful exploitation allows an attacker who has already gained renderer process access to escape Chrome's sandbox and achieve elevated privileges on the underlying Android device. This can result in full confidentiality, integrity, and availability compromise of the affected device, including access to sensitive user data, installation of malware, and persistent device control. The changed scope (S:C) in the CVSS vector reflects that the impact extends beyond the browser process itself to the broader Android OS environment (Feedly).

As of the time of disclosure, there is no public proof-of-concept exploit and no evidence of active in-the-wild exploitation. The EPSS score is approximately 0.288%, indicating a low near-term exploitation probability. The vulnerability is not listed in CISA's Known Exploited Vulnerabilities (KEV) catalog. Exploitation is non-trivial as it requires a prior renderer compromise (high attack complexity), and user interaction is required to visit a malicious page (Feedly, Chrome Releases).

1. Renderer Compromise: First, exploit a separate renderer-level vulnerability (e.g., a V8 or HTML parser bug) to gain code execution within Chrome's sandboxed renderer process on an Android device.
2. Craft Malicious HTML Page: Prepare a specially crafted HTML page that triggers the use-after-free condition in Chrome's Resources component, manipulating memory allocation and deallocation sequences to create a dangling pointer.
3. Trigger UAF: Deliver the crafted page to the victim (e.g., via a malicious link, drive-by download, or man-in-the-middle attack) and cause the victim to load it in a vulnerable Chrome version (< 151.0.7922.109 on Android).
4. Memory Manipulation: Exploit the freed memory region by allocating controlled data into the freed slot, redirecting execution flow to attacker-controlled code.
5. Sandbox Escape: Leverage the UAF to execute code outside the renderer sandbox, gaining elevated privileges on the Android OS and enabling further malicious activity such as data exfiltration or persistent access (Chrome Releases, Feedly).

Google has released a patch in Chrome version 151.0.7922.109 (Android) and 151.0.7922.108/.109 (Windows/Mac/Linux). Users should update Google Chrome to version 151.0.7922.109 or later immediately via the browser's built-in update mechanism or the Google Play Store on Android. As a precautionary measure, avoid visiting untrusted or suspicious websites, particularly on Android devices, as exploitation requires user interaction with a malicious page. No configuration-based workaround is available; patching is the only definitive remediation (Chrome Releases).

The Chrome 151 update, which includes CVE-2026-19141 among 41 security fixes, received coverage from security-focused outlets including GBHackers and CyberNoz, which highlighted the large number of vulnerabilities addressed in this release. CIS issued an advisory noting that multiple vulnerabilities in Google Chrome could allow for arbitrary code execution. The broader security community noted the high volume of use-after-free bugs addressed in this single Chrome release. No specific researcher commentary or notable social media discussion focused exclusively on CVE-2026-19141 has been identified (CIS Advisory, GBHackers).