CVE-2026-14392: Google Chrome Tint RCE Vulnerability

CVE-2026-14392 Overview

CVE-2026-14392 is an out-of-bounds write vulnerability in Tint, the WebGPU Shading Language (WGSL) compiler used by Google Chrome. The flaw affects Chrome versions prior to 150.0.7871.46 and allows a remote attacker to potentially perform a sandbox escape through a crafted HTML page. Chromium security engineers rated the underlying issue as High severity, while the NVD assigned a Critical CVSS rating due to the scope change and full impact on confidentiality, integrity, and availability. The weakness maps to CWE-787, Out-of-bounds Write.

Critical Impact
A remote attacker can escape the Chrome renderer sandbox by luring a user to a malicious page, enabling code execution outside the browser's isolation boundary.

Affected Products

Google Chrome for Desktop prior to 150.0.7871.46
Chromium-based browsers embedding vulnerable Tint/WebGPU components
Any application shipping the affected Chromium branch prior to the June 2026 stable channel update

Discovery Timeline

2026-07-01 - CVE-2026-14392 published to NVD
2026-07-02 - Last updated in NVD database

Technical Details for CVE-2026-14392

Vulnerability Analysis

The vulnerability resides in Tint, the shader translator that compiles WGSL into backend shader languages for WebGPU. Tint operates inside the GPU process and parses attacker-controlled shader source supplied through the WebGPU JavaScript API. An out-of-bounds write during shader translation corrupts memory adjacent to the target buffer, giving an attacker a primitive to overwrite object metadata or function pointers. Because the GPU process runs with broader privileges than a standard renderer, memory corruption there provides a viable path to sandbox escape. Successful exploitation requires user interaction, typically visiting an attacker-controlled HTML page, but no authentication.

Root Cause

The root cause is missing or insufficient bounds validation while Tint processes WGSL constructs. A crafted shader triggers a write past the end of a heap-allocated buffer, corrupting adjacent memory. The condition is classified under [CWE-787] and is consistent with prior Tint parser and IR transformation defects addressed in Chromium.

Attack Vector

Exploitation proceeds through the network attack surface. An attacker hosts a malicious HTML page that loads JavaScript to request a WebGPU device and submits a crafted WGSL shader. When Tint compiles the shader inside the GPU process, the out-of-bounds write executes. The scope change indicates that impact extends beyond the initially vulnerable component, aligning with a sandbox escape from the GPU process into host resources. The vulnerability is unpatched only on browsers running versions earlier than 150.0.7871.46; refer to the Google Chrome Stable Update and the Chromium Issue Tracker Entry for vendor details.

// No verified public proof-of-concept is available.
// Exploitation requires a crafted WGSL shader submitted via the WebGPU API
// that triggers an out-of-bounds write during Tint compilation in the GPU process.

Detection Methods for CVE-2026-14392

Indicators of Compromise

Chrome GPU process crashes with heap corruption signatures shortly after visiting an untrusted page
Unexpected child processes spawned by chrome.exe or the GPU process on endpoints running Chrome versions earlier than 150.0.7871.46
Browser telemetry showing WebGPU device requests followed by GPU process termination and restart

Detection Strategies

Inventory installed Chrome and Chromium-based browser versions across the fleet and flag builds prior to 150.0.7871.46
Monitor endpoint telemetry for anomalous process lineage originating from the Chrome GPU process, including shell, script interpreter, or LOLBin execution
Correlate browser crash dumps referencing tint, dawn, or webgpu modules with subsequent process anomalies

Monitoring Recommendations

Alert on repeated GPU process crashes on hosts that browse the public internet
Log WebGPU feature usage where feasible and baseline expected origins that legitimately require it
Track outbound network connections initiated by non-browser child processes launched under the Chrome process tree

How to Mitigate CVE-2026-14392

Immediate Actions Required

Update Google Chrome to version 150.0.7871.46 or later on all Windows, macOS, and Linux endpoints
Restart the browser after patching to ensure the vulnerable Tint component is unloaded
Update Chromium-based browsers and embedded WebViews once vendors ship builds incorporating the fix

Patch Information

Google addressed the vulnerability in the Chrome Stable channel update announced in June 2026, shipping 150.0.7871.46 for Desktop. Deployment details are documented in the Google Chrome Stable Update release notes, and the underlying defect is tracked in the Chromium Issue Tracker Entry.

Workarounds

Disable WebGPU via enterprise policy where the feature is not required by business applications
Block or restrict access to untrusted websites through DNS filtering, secure web gateways, or browser isolation
Enforce Chrome auto-update policies so managed endpoints receive stable channel security fixes without user action

bash

# Example: disable WebGPU via Chrome Enterprise policy on Linux
# /etc/opt/chrome/policies/managed/disable-webgpu.json
{
  "WebGPUEnabled": false
}