CVE-2026-7943: Google Chrome ANGLE RCE Vulnerability

CVE-2026-7943 Overview

CVE-2026-7943 is an input validation vulnerability in ANGLE, the graphics translation layer used by Google Chrome. The flaw affects Chrome versions prior to 148.0.7778.96 and stems from insufficient validation of untrusted input [CWE-20]. A remote attacker who has already compromised the renderer process can leverage a crafted HTML page to perform arbitrary read and write operations. Google classifies the Chromium security severity as Medium. The vulnerability requires user interaction and high attack complexity, limiting its standalone impact. Exploitation typically requires chaining with a separate renderer compromise.

Critical Impact
An attacker with renderer process compromise can achieve arbitrary memory read and write through crafted HTML, potentially enabling sandbox escape attempts in chained exploit scenarios.

Affected Products

Google Chrome prior to 148.0.7778.96
Chrome installations on Microsoft Windows
Chrome installations on Apple macOS and Linux

Discovery Timeline

2026-05-06 - CVE CVE-2026-7943 published to NVD
2026-05-06 - Last updated in NVD database

Technical Details for CVE-2026-7943

Vulnerability Analysis

The vulnerability resides in ANGLE (Almost Native Graphics Layer Engine), the component Chrome uses to translate OpenGL ES API calls to platform-specific graphics APIs such as Direct3D, Metal, and Vulkan. ANGLE processes graphics commands originating from web content, including WebGL and WebGPU calls. Insufficient validation of untrusted input allows malformed graphics commands or parameters to bypass safety checks. The result is arbitrary read and write primitives within the affected process context.

Root Cause

The root cause is improper input validation [CWE-20] within ANGLE's processing of data received from a compromised renderer. ANGLE trusts certain inputs from the renderer process boundary without sufficient bounds or type validation. When an attacker controls the renderer, they can supply crafted parameters that ANGLE processes unsafely, enabling memory access outside intended boundaries.

Attack Vector

Exploitation requires two preconditions. First, the attacker must already have compromised the Chrome renderer process, typically through a separate vulnerability. Second, the victim must load attacker-controlled content via a crafted HTML page. Once these conditions are met, the attacker issues malformed graphics calls to ANGLE to achieve arbitrary read and write. This vulnerability serves as a sandbox escape building block rather than a standalone remote code execution flaw. The high attack complexity reflects the renderer compromise prerequisite. Technical specifics are tracked in Chromium Issue #495373657.

Detection Methods for CVE-2026-7943

Indicators of Compromise

Chrome browser processes running versions older than 148.0.7778.96 after the patch release window
Unexpected Chrome renderer or GPU process crashes correlated with WebGL or WebGPU content
Outbound connections from Chrome processes to unusual destinations following visits to untrusted pages

Detection Strategies

Inventory Chrome installations across endpoints and flag versions below 148.0.7778.96 for remediation
Monitor browser process telemetry for anomalous child process spawning from chrome.exe GPU and renderer processes
Correlate user navigation events with subsequent Chrome process crashes to identify potential exploitation attempts

Monitoring Recommendations

Enable enterprise browser telemetry and forward Chrome crash reports to a centralized analysis platform
Track Chrome version compliance through endpoint management tools and generate alerts on outdated installations
Review proxy and DNS logs for connections to known malicious infrastructure delivering exploit chains

How to Mitigate CVE-2026-7943

Immediate Actions Required

Update Google Chrome to version 148.0.7778.96 or later on all Windows, macOS, and Linux endpoints
Restart Chrome after updating to ensure the patched binaries are loaded into memory
Verify enterprise update policies are configured to deliver Chrome updates within 72 hours of release

Patch Information

Google released the fix in Chrome 148.0.7778.96 through the Stable channel update. Refer to the Google Chrome Update Announcement for full release notes. Enterprise administrators should deploy the update through Group Policy, Jamf, Intune, or equivalent management tooling.

Workarounds

Restrict access to untrusted web content using enterprise browser policies and URL allow-listing where feasible
Disable hardware-accelerated graphics features such as WebGL through enterprise policy if patching is delayed
Apply site isolation and strict same-origin enforcement to reduce the impact of renderer compromise

bash

# Verify Chrome version on Windows
reg query "HKLM\Software\Google\Update\Clients\{8A69D345-D564-463C-AFF1-A69D9E530F96}" /v pv

# Verify Chrome version on macOS
defaults read /Applications/Google\ Chrome.app/Contents/Info.plist CFBundleShortVersionString

# Verify Chrome version on Linux
google-chrome --version