CVE-2026-17676 in Chrome
Summary
by MITRE • 07/30/2026
Inappropriate implementation in ANGLE in Google Chrome on Android prior to 151.0.7922.72 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 • 07/30/2026
The vulnerability under discussion represents a critical sandbox escape flaw within the ANGLE graphics library implementation used by Google Chrome on Android platforms. This issue affects versions prior to 151.0.7922.72 and stems from an inappropriate implementation that creates a pathway for remote attackers who have already compromised the renderer process to potentially break out of the browser's security sandbox. The ANGLE library serves as a crucial component that translates OpenGL ES calls into DirectX operations on Windows systems, but its Android implementation contains a significant design flaw that undermines the fundamental security boundaries established by Chrome's architecture.
The technical nature of this vulnerability lies in the improper handling of graphics rendering operations within the renderer process context. When an attacker successfully compromises the renderer process through initial exploitation vectors such as memory corruption or privilege escalation techniques, they can leverage this flaw to execute code outside the intended sandbox boundaries. This represents a severe regression in Chrome's security model where the isolation between different browser processes becomes compromised, allowing malicious actors to gain elevated privileges and potentially access system resources that should remain protected. The vulnerability manifests through crafted HTML pages that trigger specific graphics operations within the ANGLE library, exploiting memory management flaws or improper validation of graphics command sequences.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it fundamentally compromises the security architecture that protects user data and system integrity. In practical terms, attackers who can already execute code in the renderer process gain a significant advantage by being able to escape to higher privilege levels, potentially enabling them to access sensitive user information, monitor browsing activities, or even gain full system control. This vulnerability directly impacts the Chromium security model's principle of least privilege and process isolation, where each component should operate within clearly defined boundaries that prevent unauthorized access to other processes or system resources. The high severity classification reflects the substantial risk this flaw poses to end-user security and privacy.
Mitigation strategies for this vulnerability require immediate patching of affected Chrome versions to 151.0.7922.72 or later, as this represents the first fixed release that addresses the underlying implementation issues in ANGLE's graphics handling code. Organizations should implement comprehensive monitoring for any signs of exploitation attempts and ensure that all Android devices running Chrome browsers receive timely security updates. System administrators should consider implementing additional network-level protections and browser hardening measures to reduce the attack surface available to potential exploiters. This vulnerability aligns with ATT&CK technique T1059.007 for command and scripting interpreter usage, as exploitation would likely involve crafting malicious HTML content that triggers the vulnerable graphics rendering path. The flaw also corresponds to CWE-276 which describes improper privileges, specifically in how graphics library components handle process isolation and privilege boundaries within browser environments.