CVE-2026-14101: Google Chrome RCE Vulnerability

CVE-2026-14101 Overview

CVE-2026-14101 is a sandbox escape vulnerability in Google Chrome on macOS caused by insufficient policy enforcement in the Sandbox component. The flaw affects versions prior to 150.0.7871.47. A remote attacker who has already compromised the renderer process can escape the Chrome sandbox by delivering a crafted HTML page. Google Chromium classifies the internal security severity as Low, though the NVD CVSS 3.1 base score is 9.6. The vulnerability is tracked under CWE-269 (Improper Privilege Management) and CWE-693 (Protection Mechanism Failure).

Critical Impact
Successful exploitation allows an attacker with renderer control to bypass Chrome's macOS sandbox and execute code outside the browser's isolation boundary.

Affected Products

Google Chrome on macOS prior to 150.0.7871.47
Apple macOS (host operating system for affected Chrome builds)
Chromium-based browsers reusing the vulnerable Chrome sandbox code on macOS

Discovery Timeline

2026-06-30 - CVE-2026-14101 published to NVD
2026-07-02 - Last updated in NVD database

Technical Details for CVE-2026-14101

Vulnerability Analysis

CVE-2026-14101 resides in the Chrome Sandbox on macOS. The sandbox is designed to confine renderer processes so that memory corruption or logic bugs in web content parsing cannot translate into full system compromise. Insufficient policy enforcement means the sandbox fails to consistently apply the restrictions it advertises to callers. An attacker chaining a prior renderer compromise with this weakness can perform operations that the sandbox policy should have blocked. The result is a sandbox escape, giving the attacker code execution at the broker or system level outside the renderer jail. The user interaction requirement is satisfied by loading attacker-controlled HTML in the browser.

Root Cause

The root cause is a protection mechanism failure [CWE-693] combined with improper privilege management [CWE-269] in the macOS-specific sandbox policy layer. The policy either omits required checks or evaluates them under conditions where they can be bypassed. Because the enforcement gap sits in the trust boundary between renderer and broker, a compromised renderer inherits privileges it was never intended to hold.

Attack Vector

Exploitation requires two stages. First, the attacker compromises the renderer process, typically through a separate memory corruption or type confusion bug reachable from web content. Second, the attacker abuses the insufficient sandbox policy enforcement to break out of the renderer confinement on macOS. The delivery vector is a crafted HTML page, so any visited site or embedded iframe can serve as the entry point.

No verified public proof-of-concept code is available. Refer to the Google Chromium Issue Report for technical detail once access restrictions are lifted.

Detection Methods for CVE-2026-14101

Indicators of Compromise

Chrome renderer or helper processes on macOS spawning unexpected child processes outside the standard Chrome process tree.
Chrome helper processes writing to locations outside the browser profile or executing shell utilities such as /bin/sh, osascript, or launchctl.
Outbound network connections from Chrome helper processes to non-web destinations following visits to untrusted pages.

Detection Strategies

Inventory installed Chrome versions across macOS endpoints and flag any build below 150.0.7871.47.
Baseline the normal Chrome process tree on macOS and alert on deviations such as Google Chrome Helper (Renderer) invoking system binaries.
Correlate browser crash telemetry with subsequent privileged file writes or persistence artifacts within a short time window.

Monitoring Recommendations

Enable endpoint telemetry for process creation, file writes, and network connections originating from Chrome helper processes.
Monitor macOS TCC.db modifications and Launch Agent or Launch Daemon creation events following browser activity.
Track Chrome update status via management tooling to confirm patched builds are deployed fleet-wide.

How to Mitigate CVE-2026-14101

Immediate Actions Required

Update Google Chrome on macOS to version 150.0.7871.47 or later on all managed and unmanaged endpoints.
Restart Chrome after updating to ensure the patched sandbox binaries are loaded into memory.
Audit Chromium-based browsers and Electron applications on macOS for downstream patches addressing the same sandbox policy gap.

Patch Information

Google released the fix in the Chrome Stable channel update announced in the Google Chrome Update Announcement. Upgrading to 150.0.7871.47 or newer remediates the insufficient policy enforcement in the macOS sandbox.

Workarounds

No supported workaround exists; apply the vendor patch as the primary remediation.
Restrict browsing to trusted sites and enforce site isolation policies via enterprise Chrome management until patching completes.
Deploy application allowlisting on macOS to constrain what processes Chrome helpers can spawn if a sandbox escape occurs.

bash

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

# Force update via enterprise MDM (example: Jamf policy trigger)
sudo jamf policy -event update-chrome

# Confirm patched build is >= 150.0.7871.47
defaults read /Applications/Google\ Chrome.app/Contents/Info CFBundleShortVersionString