CVE-2026-14424 Overview
CVE-2026-14424 is a use-after-free vulnerability in the Dawn component of Google Chrome on macOS. Dawn is Chromium's cross-platform implementation of the WebGPU standard, translating WebGPU calls into native graphics APIs. The flaw affects Chrome versions prior to 150.0.7871.46 and enables a remote attacker to perform a sandbox escape through a crafted HTML page. Google's Chromium security team rated the underlying issue as High severity, and the NVD scoring reflects a scope-changed impact due to the sandbox escape potential. The weakness is tracked under CWE-416.
Critical Impact
A crafted web page can trigger memory reuse in the Dawn/WebGPU code path, allowing a remote attacker to escape the Chrome renderer sandbox on macOS and execute code outside the browser's isolation boundary.
Affected Products
- Google Chrome for macOS versions prior to 150.0.7871.46
- Chromium-based browsers on macOS that embed the vulnerable Dawn/WebGPU implementation
- Applications bundling affected Chromium releases with WebGPU enabled
Discovery Timeline
- 2026-07-01 - CVE-2026-14424 published to NVD
- 2026-07-02 - Last updated in NVD database
Technical Details for CVE-2026-14424
Vulnerability Analysis
The vulnerability resides in Dawn, the Chromium subsystem that implements the WebGPU API on top of native graphics backends such as Metal on macOS. A use-after-free condition occurs when Dawn continues to reference a graphics resource object after that object's backing memory has already been released. Because WebGPU exposes GPU command submission and resource lifetime management directly to JavaScript, an attacker can drive object allocation and destruction from a web page. Chaining a use-after-free in Dawn with GPU-process to sandbox interactions elevates the impact from a renderer-only compromise to a full sandbox escape.
Root Cause
The root cause is improper object lifetime tracking within Dawn's resource management [CWE-416]. When a GPU resource is freed while another code path still holds a live pointer, subsequent access reads or writes memory that may have been reallocated for attacker-controlled data. Manipulating the freed slot lets an attacker corrupt object metadata, hijack virtual function pointers, or leak sensitive pointers from the GPU process.
Attack Vector
Exploitation requires a victim to load a crafted HTML page in a vulnerable Chrome build on macOS. The page uses WebGPU JavaScript APIs to allocate, submit, and free graphics resources in a sequence that triggers the dangling reference. No authentication is needed, but user interaction is required to visit the page. Successful exploitation permits code execution in the GPU process context and can be chained to break out of Chrome's macOS sandbox. Public exploit code is not available at the time of publication, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog.
No verified public proof-of-concept code exists for CVE-2026-14424. Refer to the Chromium Issue Tracker #517692772 once access restrictions are lifted for technical specifics.
Detection Methods for CVE-2026-14424
Indicators of Compromise
- Chrome renderer or GPU process crashes on macOS with signatures referencing dawn::, webgpu, or Metal command buffer frames.
- Unexpected child processes spawned by Google Chrome Helper (GPU) or writes outside the Chrome sandbox container.
- Outbound connections initiated by Chrome helper processes to previously unseen domains shortly after page load.
Detection Strategies
- Inventory installed Chrome versions across macOS endpoints and flag any build below 150.0.7871.46.
- Monitor CrashReporter and ReportCrash artifacts for GPU-process faults correlated with WebGPU-enabled sites.
- Correlate browser telemetry with process-lineage events to detect anomalous execution originating from the Chrome GPU helper.
Monitoring Recommendations
- Enable endpoint detection and response telemetry for process creation, file writes, and network activity by Chrome helper processes on macOS.
- Ingest browser and macOS Unified Log events into a SIEM to build baselines for GPU-process behavior.
- Track proxy or DNS logs for access to attacker-controlled pages hosting WebGPU shader payloads.
How to Mitigate CVE-2026-14424
Immediate Actions Required
- Upgrade Google Chrome on macOS to version 150.0.7871.46 or later on all managed endpoints.
- Force-restart Chrome after deploying the update so that patched binaries are actually loaded.
- Audit third-party Chromium-based applications on macOS and update them to a release incorporating the Dawn fix.
Patch Information
Google addressed CVE-2026-14424 in the Chrome stable channel release documented in the Google Chrome Desktop Update announcement. Administrators should deploy Chrome 150.0.7871.46 or later on macOS. Details of the underlying fix are tracked in Chromium Issue Tracker #517692772.
Workarounds
- Disable WebGPU via enterprise policy by setting the WebGPUEnabled policy to false until patching completes.
- Restrict browsing to trusted sites through URL allow-listing to reduce exposure to malicious pages.
- Enforce least-privilege macOS user accounts so that any post-exploitation impact is limited in scope.
# Configuration example: disable WebGPU via Chrome enterprise policy on macOS
sudo defaults write /Library/Managed\ Preferences/com.google.Chrome WebGPUEnabled -bool false
sudo defaults write /Library/Managed\ Preferences/com.google.Chrome WebGPUDeveloperFeaturesEnabled -bool false
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
