CVE-2026-19154 in Chrome
Summary
by MITRE • 08/07/2026
Use after free in Skia 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: Critical)
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Analysis
by VulDB Data Team • 08/07/2026
This vulnerability represents a critical use-after-free flaw in Skia, Google Chrome's 2D graphics rendering library, affecting Android versions prior to 151.0.7922.109. The issue arises when the renderer process handles crafted HTML content that triggers improper memory management during graphics operations, creating conditions where freed memory regions can be accessed or reused by subsequent operations. The vulnerability is classified as a use-after-free condition under CWE-416, which occurs when a program continues to reference memory after it has been freed, potentially allowing arbitrary code execution in the context of the compromised renderer process.
The exploitation scenario involves a remote attacker who has already gained control of the renderer process through initial compromise techniques such as sandbox escape or privilege escalation. Once inside this process, the attacker can craft malicious HTML content that specifically targets Skia's memory management routines, causing the graphics subsystem to access freed memory locations. This particular flaw enables what is known as a sandbox escape attack pattern, where the compromised renderer process gains elevated privileges or circumvents system security boundaries that normally separate different process contexts.
The technical impact of this vulnerability extends beyond simple memory corruption, as it provides attackers with potential paths to achieve more sophisticated attacks such as code execution in the context of the browser's privileged processes. The Chromium security severity rating of Critical reflects the combination of remote exploitability and the potential for privilege escalation that can occur when an attacker successfully leverages this use-after-free condition. This type of vulnerability commonly maps to ATT&CK technique T1059.007 for command and script interpreter, where attackers might use the compromised renderer process to execute additional payloads or establish persistence.
The operational impact on affected systems is significant as it allows remote code execution with the privileges of the compromised renderer process, potentially leading to full system compromise if the attacker can later escalate privileges or exploit additional vulnerabilities. Organizations running affected Chrome versions should prioritize immediate patching to mitigate this risk, as the vulnerability provides a direct path for attackers to potentially bypass sandbox protections that normally isolate untrusted content processing. The fix in version 151.0.7922.109 addresses the underlying memory management issue by ensuring proper reference counting and validation of graphics resource lifecycles within Skia's rendering pipeline.
This vulnerability demonstrates the critical importance of memory safety in graphics libraries, where improper handling of resources during complex rendering operations can create exploitable conditions. The security implications extend to all Android users of affected Chrome versions, as the attack vector is entirely remote and requires no user interaction beyond visiting a malicious website. Security teams should monitor for indicators of compromise related to this vulnerability and ensure that all Android devices are updated to patched versions of Chrome to prevent exploitation attempts that may be actively targeting this specific use-after-free condition in Skia's implementation.