CVE-2026-13819: Google Chrome ANGLE RCE Vulnerability

CVE-2026-13819 Overview

CVE-2026-13819 is an out-of-bounds read vulnerability in the ANGLE (Almost Native Graphics Layer Engine) component of Google Chrome on macOS. The flaw affects Chrome versions prior to 150.0.7871.47. A remote attacker who has already compromised the renderer process can trigger an out-of-bounds memory read using a crafted HTML page. Google classified the Chromium security severity as High. The weakness is tracked under CWE-125: Out-of-bounds Read.

Critical Impact
An attacker with a compromised renderer can read memory beyond allocated buffer bounds, potentially exposing sensitive process data and aiding sandbox escape chains.

Affected Products

Google Chrome on macOS prior to 150.0.7871.47
ANGLE graphics translation layer bundled with Chromium
Chromium-based browsers on macOS incorporating vulnerable ANGLE builds

Discovery Timeline

2026-06-30 - CVE-2026-13819 published to NVD
2026-07-02 - Last updated in NVD database

Technical Details for CVE-2026-13819

Vulnerability Analysis

ANGLE translates OpenGL ES API calls into native graphics APIs such as Metal on macOS. Chrome uses ANGLE to render WebGL and other GPU-accelerated content inside the renderer process. The vulnerability allows an out-of-bounds read within ANGLE when processing attacker-controlled graphics input. The read occurs beyond the intended buffer boundary, exposing adjacent memory contents to the caller.

Exploitation requires an attacker to first compromise the renderer process. From that position, the attacker uses a crafted HTML page to reach the vulnerable ANGLE code path. The leaked memory can disclose pointers, tokens, or other data useful for defeating address space layout randomization (ASLR). This makes the flaw a strong candidate for chaining into a sandbox escape or full remote code execution exploit.

Root Cause

The root cause is missing or incorrect bounds validation on a buffer indexed within ANGLE on macOS. When ANGLE processes crafted graphics state or shader data, it reads past the allocated region. This class of defect [CWE-125] typically stems from mismatches between declared buffer sizes and index or length values derived from untrusted input.

Attack Vector

The attack vector is network-based and requires user interaction to visit a malicious page. The attacker must first achieve code execution in the renderer through a separate vulnerability. The crafted HTML then drives ANGLE into the vulnerable path, returning out-of-bounds data. Full technical details are tracked in the Chromium Issue Tracker #512962749.

No verified public proof-of-concept code is available. The vulnerability mechanism is described in the Google Chrome Stable Update advisory.

Detection Methods for CVE-2026-13819

Indicators of Compromise

Chrome renderer processes on macOS crashing with signals consistent with memory access faults in ANGLE modules
Outbound connections from Chrome to unfamiliar domains hosting WebGL-heavy content shortly before crash events
Presence of Chrome versions earlier than 150.0.7871.47 in the macOS fleet inventory

Detection Strategies

Inventory installed Chrome versions across macOS endpoints and flag any build below 150.0.7871.47
Monitor browser process telemetry for abnormal child process spawning or unexpected GPU process behavior on macOS
Correlate browsing history with crash reports referencing ANGLE, libGLESv2, or Metal graphics stack frames

Monitoring Recommendations

Ingest macOS unified logs and Chrome crash reports into a centralized analytics pipeline for anomaly review
Alert on execution of unsigned or unexpected binaries following Chrome renderer crashes
Track visits to newly registered domains delivering WebGL content, particularly from high-value user segments

How to Mitigate CVE-2026-13819

Immediate Actions Required

Update Google Chrome on macOS to version 150.0.7871.47 or later across all managed endpoints
Enforce automatic Chrome updates through mobile device management (MDM) policies on macOS
Audit any Chromium-based browsers in the environment and apply vendor-supplied ANGLE patches

Patch Information

Google released the fix in the Chrome Stable channel update referenced in the Google Chrome Stable Update advisory. Administrators should verify that endpoints report the patched version after deployment. Restart Chrome on all systems to complete the update process.

Workarounds

Restrict access to untrusted websites through enterprise web filtering until patching completes
Disable hardware-accelerated graphics in Chrome as a temporary measure to reduce ANGLE exposure
Apply site isolation and strict extension controls to limit the impact of a compromised renderer

bash

# Verify installed Chrome version on macOS endpoints
/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome --version

# Force update check via command line
open -a "Google Chrome" --args --check-for-update-interval=1