CVE-2026-13869: Google Chrome Use-After-Free Vulnerability

CVE-2026-13869 Overview

CVE-2026-13869 is a use-after-free vulnerability [CWE-416] in the Device component of Google Chrome on Windows. The flaw affects versions prior to 150.0.7871.47. A remote attacker who has already compromised the renderer process can chain this bug to escape the Chrome sandbox using a crafted HTML page. Chromium's internal severity rating for this issue is Medium, while the NVD scored it 9.6 due to the scope change resulting from a sandbox escape. User interaction is required, typically by visiting an attacker-controlled page.

Critical Impact
Successful exploitation enables a sandbox escape from the renderer process, allowing code execution outside Chrome's security boundary on Windows hosts.

Affected Products

Google Chrome for Windows versions prior to 150.0.7871.47
Chromium-based browsers embedding vulnerable Device component code
Windows endpoints running affected Chrome Stable channel builds

Discovery Timeline

2026-06-30 - CVE-2026-13869 published to NVD
2026-07-01 - Last updated in NVD database

Technical Details for CVE-2026-13869

Vulnerability Analysis

The vulnerability resides in the Device subsystem of Chrome, which handles interfaces such as device APIs exposed to renderer processes through Mojo IPC. A use-after-free condition occurs when the browser process references a device-related object after its backing memory has been released. An attacker with control of the renderer can drive the object lifecycle to trigger dereference of freed memory in a higher-privilege process.

The bug is a secondary-stage vulnerability. It requires prior renderer compromise, typically achieved through a separate memory corruption flaw in the JavaScript engine or rendering pipeline. Chaining the two primitives yields code execution outside Chrome's renderer sandbox on Windows.

Root Cause

The root cause is improper object lifetime management in the Device component. A pointer or handle to a device object continues to be used after the object is destroyed. When the freed memory is reallocated and reshaped by attacker-controlled data, subsequent method calls or virtual dispatches operate on attacker-supplied structures. This yields control of execution flow in the browser process, which is not confined by the renderer sandbox.

Attack Vector

Exploitation requires network-reachable attacker content and user interaction. A victim must load a crafted HTML page in an affected Chrome build. The attacker first exploits an unrelated renderer bug to gain code execution inside the sandboxed renderer, then interacts with the Device Mojo interface to trigger the use-after-free in the browser process. See the Chromium Issue Tracker Entry and the Google Chrome Desktop Update for release details.

Detection Methods for CVE-2026-13869

Indicators of Compromise

Unexpected child processes spawned by chrome.exe outside the standard renderer, GPU, and utility process tree
Chrome browser process crashes referencing Device-related modules in Windows Error Reporting or crash dumps
Outbound connections from Chrome browser process to non-standard endpoints following visits to untrusted pages

Detection Strategies

Inventory installed Chrome versions across Windows endpoints and flag any build below 150.0.7871.47
Monitor for browser exploitation behaviors such as reflective code loading, unusual memory allocations, or handle duplication originating from chrome.exe
Correlate renderer crash telemetry with subsequent browser-process anomalies to identify chained exploitation attempts

Monitoring Recommendations

Enable Chrome enterprise reporting to centralize version, crash, and extension telemetry
Ingest endpoint process-lineage and module-load events into your SIEM for behavioral analytics
Alert on Chrome browser process performing token manipulation, process injection, or spawning cmd.exe or powershell.exe

How to Mitigate CVE-2026-13869

Immediate Actions Required

Update Google Chrome on all Windows endpoints to version 150.0.7871.47 or later
Force-restart Chrome sessions to ensure the patched binary is loaded into memory
Verify auto-update health on managed fleets and remediate endpoints where updates are stalled

Patch Information

Google released the fix in Chrome Stable channel version 150.0.7871.47 for Windows. Refer to the Google Chrome Desktop Update advisory for the full list of security fixes in this release. Chromium-based browser vendors including Microsoft Edge, Brave, Opera, and Vivaldi should be updated once they incorporate the upstream fix.

Workarounds

Restrict browsing to trusted sites via enterprise policy where patching is delayed
Enable Chrome's Site Isolation and ensure sandboxing policies are not disabled via --no-sandbox flags
Deploy application-control policies to block execution of unsigned child processes launched by chrome.exe

bash

# Verify installed Chrome version on Windows endpoints
reg query "HKLM\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Google Chrome" /v DisplayVersion

# Force Chrome update via Google Update on managed hosts
"%ProgramFiles(x86)%\Google\Update\GoogleUpdate.exe" /ua /installsource scheduler