CVE-2026-17847 in Chrome
Summary
by MITRE • 07/30/2026
Insufficient validation of untrusted input in ANGLE in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)
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Analysis
by VulDB Data Team • 07/30/2026
The vulnerability under discussion represents a critical sandbox escape vector within the ANGLE graphics library implementation used by Google Chrome browsers prior to version 151.0.7922.72. This flaw stems from inadequate validation of untrusted input data, specifically affecting the graphics processing components that handle WebGL and Direct3D operations. The issue manifests when a remote attacker crafts a malicious HTML page containing specially constructed graphics commands or data structures that bypass existing input sanitization mechanisms within ANGLE's rendering pipeline.
The technical exploitation occurs through improper handling of vertex buffer data and shader compilation parameters that flow from web content into the graphics subsystem. When Chrome processes these unvalidated inputs, the ANGLE library fails to properly validate the integrity and bounds of the submitted graphics commands, allowing malicious data to traverse security boundaries. This vulnerability directly maps to CWE-20, which describes "Improper Input Validation" as a fundamental weakness that enables various injection attacks including those targeting system components.
The operational impact extends beyond simple privilege escalation as this sandbox escape vulnerability allows attackers to bypass Chrome's multi-process architecture and potentially gain access to system resources that should remain isolated. The attack surface includes potential access to file system operations, network communications, and execution of arbitrary code within the browser's graphics rendering context. This represents a significant concern for enterprise environments where Chrome is widely deployed as a primary browser application.
Security researchers have categorized this vulnerability according to the Chromium security severity rating system as Medium, though the actual risk assessment should consider that sandbox escapes typically represent high-impact threats. The exploitability requires remote code execution through web-based delivery mechanisms and leverages the graphics processing unit's execution context to bypass traditional browser security boundaries. Organizations should implement immediate mitigations including browser updates to version 151.0.7922.72 or later, along with network-level protections such as content filtering and sandbox hardening measures.
This vulnerability aligns with ATT&CK technique T1059.007 for Command and Scripting Interpreter and T1548.002 for Account Manipulation, though the primary impact occurs through the graphics subsystem rather than traditional command execution paths. The attack chain typically involves initial web page delivery followed by exploitation of graphics rendering components to achieve privilege escalation. Organizations should monitor for indicators of compromise including unusual graphics processing behavior, unexpected network connections, and file system access patterns that may indicate successful exploitation attempts.
Mitigation strategies include immediate deployment of patched browser versions, implementation of strict content security policies, and enhanced monitoring of graphics-related system calls. Security teams should also consider implementing application whitelisting controls to limit access to graphics processing libraries and establish baseline behavior monitoring for anomalous GPU memory operations. The vulnerability demonstrates the importance of comprehensive input validation across all subsystems including specialized components like graphics libraries that are often overlooked in traditional security assessments.
The broader implications highlight the need for robust security testing of graphics rendering engines and their integration with web browser architectures. This case emphasizes how seemingly isolated components can provide attack vectors that compromise entire system security models, particularly when input validation is insufficient across complex software ecosystems. Organizations should consider implementing regular vulnerability assessments targeting graphics processing libraries and ensure comprehensive testing of all browser subsystems to prevent similar issues in future deployments.