CVE-2026-4452: Google Chrome ANGLE RCE Vulnerability

CVE-2026-4452 Overview

CVE-2026-4452 is an integer overflow vulnerability in the ANGLE (Almost Native Graphics Layer Engine) component of Google Chrome on Windows. This vulnerability exists in versions prior to 146.0.7680.153 and allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. The Chromium security team has rated this vulnerability as high severity.

Critical Impact

A remote attacker can exploit this integer overflow to cause heap corruption, potentially leading to arbitrary code execution in the context of the browser. Successful exploitation requires only that a user visit a malicious web page.

Affected Products

• Google Chrome versions prior to 146.0.7680.153
• Microsoft Windows operating systems running affected Chrome versions
• Chromium-based browsers using the vulnerable ANGLE component

Discovery Timeline

• 2026-03-20 - CVE-2026-4452 published to NVD
• 2026-03-20 - Last updated in NVD database

Technical Details for CVE-2026-4452

Vulnerability Analysis

This vulnerability is classified under CWE-190 (Integer Overflow or Wraparound) and CWE-472 (External Control of Assumed-Immutable Web Parameter). The integer overflow occurs within the ANGLE component, which serves as Chrome's graphics abstraction layer, translating OpenGL ES API calls to platform-specific graphics APIs such as DirectX on Windows.

When processing specially crafted graphics data through a malicious HTML page, an integer overflow condition can occur during memory allocation calculations. This overflow causes the allocated buffer to be smaller than expected, leading to subsequent heap corruption when data is written beyond the allocated bounds.

Root Cause

The root cause of this vulnerability stems from insufficient validation of integer arithmetic operations within ANGLE's memory management routines. When processing certain graphics operations, integer values used for buffer size calculations can wrap around due to overflow, resulting in undersized memory allocations. The vulnerability is triggered through JavaScript WebGL calls that pass attacker-controlled parameters to the underlying ANGLE rendering engine.

Attack Vector

The attack vector is network-based, requiring user interaction. An attacker can exploit this vulnerability by hosting a malicious web page containing crafted WebGL or graphics content. When a victim using a vulnerable version of Chrome on Windows visits this page, the malicious graphics operations trigger the integer overflow in ANGLE, leading to heap corruption. This memory corruption can potentially be leveraged for arbitrary code execution within the Chrome renderer process sandbox.

The exploitation mechanism involves crafting specific WebGL shader programs or texture operations that cause the integer overflow during internal ANGLE calculations. While the Chrome sandbox provides some mitigation, sophisticated attackers may chain this vulnerability with sandbox escape techniques for full system compromise.

Detection Methods for CVE-2026-4452

Indicators of Compromise

• Unusual Chrome renderer process crashes associated with ANGLE or GPU operations
• Unexpected memory access violations in Chrome's GPU process logs
• Anomalous WebGL rendering behavior or errors in browser console
• Chrome crash reports indicating heap corruption in libGLESv2.dll or related ANGLE libraries

Detection Strategies

• Monitor for Chrome processes exhibiting abnormal memory usage patterns during WebGL operations
• Implement browser version auditing to identify installations running Chrome versions prior to 146.0.7680.153
• Deploy endpoint detection rules targeting suspicious WebGL activity combined with memory corruption indicators
• Review browser crash telemetry for patterns consistent with heap corruption in graphics subsystems

Monitoring Recommendations

• Enable Chrome's crash reporting and monitor for renderer process crashes with ANGLE-related stack traces
• Implement network-based detection for known malicious pages attempting to exploit this vulnerability
• Configure endpoint protection to alert on Chrome processes attempting suspicious memory operations
• Maintain centralized logging of browser version information across managed endpoints

How to Mitigate CVE-2026-4452

Immediate Actions Required

• Update Google Chrome to version 146.0.7680.153 or later immediately
• Enable automatic Chrome updates to ensure timely patching of future vulnerabilities
• Consider temporarily disabling WebGL via Chrome flags (chrome://flags/#disable-webgl) on high-risk systems pending update
• Review browser policies to ensure Chrome auto-updates are not blocked by enterprise configurations

Patch Information

Google has addressed this vulnerability in Chrome version 146.0.7680.153. The fix was announced in the Google Chrome Stable Channel Update on March 18, 2026. Organizations should prioritize deploying this update across all managed Windows endpoints. Additional technical details may be available through the Chromium Issue Tracker.

Workarounds

• Disable WebGL in Chrome by navigating to chrome://flags and setting "WebGL" to Disabled
• Use Chrome's --disable-webgl command-line flag when launching the browser
• Implement web filtering to block access to untrusted sites that may host exploit code
• Deploy browser isolation technologies for high-risk browsing activities
• Consider using alternative browsers that are not affected while awaiting patch deployment

Organizations unable to immediately update should implement defense-in-depth measures including network segmentation, enhanced monitoring, and user awareness training about the risks of visiting untrusted websites.