CVE-2026-14009: Google Chrome RCE Vulnerability

CVE-2026-14009 Overview

CVE-2026-14009 is a heap corruption vulnerability in the Passwords component of Google Chrome versions prior to 150.0.7871.47. A remote attacker can exploit this flaw by convincing a user to visit a crafted HTML page, triggering memory corruption within the browser process. Google Chromium classifies the security severity as Medium, while the NVD assigns a CVSS 3.1 base score of 8.8 (High). The weakness is categorized under CWE-20: Improper Input Validation. Successful exploitation requires user interaction but no authentication, and it affects confidentiality, integrity, and availability of the browser session.

Critical Impact
Remote attackers can trigger heap corruption in Chrome through crafted HTML, potentially leading to arbitrary code execution within the browser context.

Affected Products

Google Chrome versions prior to 150.0.7871.47
Chromium-based browsers sharing the vulnerable Passwords component
Desktop platforms (Windows, macOS, Linux) receiving updates through the Chrome Stable channel

Discovery Timeline

2026-06-30 - CVE-2026-14009 published to NVD
2026-07-01 - Last updated in NVD database

Technical Details for CVE-2026-14009

Vulnerability Analysis

The flaw resides in the Passwords subsystem of Google Chrome, which manages saved credentials, autofill, and password-related UI flows. An inappropriate implementation permits attacker-controlled input from a crafted HTML page to influence memory operations within this component. This results in heap corruption, a class of memory safety defect that can be leveraged to overwrite adjacent heap metadata or object pointers. Because the Passwords component runs in a privileged browser context relative to renderer sandboxing, corruption here carries elevated impact. The CWE-20 classification indicates that the root defect involves failure to properly validate input before it reaches sensitive memory operations. Exploitation requires the victim to load an attacker-controlled page, satisfying the user interaction requirement.

Root Cause

The vulnerability stems from improper input validation in the Passwords component. Data derived from a crafted HTML page reaches internal password-handling logic without adequate sanitization or bounds enforcement. This condition permits an attacker to induce heap corruption through malformed or unexpected input structures processed by the component.

Attack Vector

An attacker hosts a malicious page and lures a Chrome user to visit it through phishing, malvertising, or a compromised site. When the page loads, crafted HTML interacts with the Passwords component in a way that corrupts heap memory. No credentials or elevated privileges are required. Public exploit code is not currently available, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog. The EPSS probability is 0.253%.

No verified proof-of-concept code has been released. Refer to the Chromium Issue Tracker Entry and the Google Chrome Update Announcement for vendor details as they become available.

Detection Methods for CVE-2026-14009

Indicators of Compromise

Chrome renderer or browser process crashes with heap corruption signatures shortly after loading external web content
Unexpected child processes spawned by chrome.exe following navigation to untrusted domains
Outbound network connections from Chrome processes to known malicious or newly registered domains hosting crafted HTML payloads

Detection Strategies

Inventory installed Chrome builds across the fleet and flag any version below 150.0.7871.47 for immediate remediation
Monitor endpoint telemetry for Chrome process crashes, exception codes indicating heap violations, and Watchdog termination events
Correlate browsing history or proxy logs with threat intelligence feeds to identify visits to suspicious pages preceding browser instability

Monitoring Recommendations

Ingest browser crash telemetry and process behavior into a centralized analytics platform for anomaly detection
Alert on Chrome processes performing unusual actions such as writing executables, injecting into other processes, or invoking scripting hosts
Track patch compliance metrics for Chrome across managed endpoints and enforce automated update policies

How to Mitigate CVE-2026-14009

Immediate Actions Required

Update Google Chrome to version 150.0.7871.47 or later on all Windows, macOS, and Linux endpoints
Restart Chrome after updating to ensure the patched binaries are loaded into memory
Verify that enterprise update policies are not blocking Chrome Stable channel deployments

Patch Information

Google addressed CVE-2026-14009 in Chrome Stable channel release 150.0.7871.47. Deployment details are documented in the Google Chrome Update Announcement. Administrators using Chrome Browser Cloud Management or Group Policy should confirm that TargetVersionPrefix and update suspension policies permit the fixed build.

Workarounds

Restrict browsing to trusted domains through enterprise web filtering until patches are deployed
Disable the built-in password manager via the PasswordManagerEnabled policy where operationally feasible to reduce exposure of the affected component
Enforce site isolation and strict Safe Browsing settings to reduce the likelihood of loading crafted attacker content

bash

# Verify installed Chrome version on Linux
google-chrome --version

# Windows: query installed version via registry
reg query "HKLM\SOFTWARE\Google\Update\Clients\{8A69D345-D564-463C-AFF1-A69D9E530F96}" /v pv

# Group Policy example to disable password manager
# Computer Configuration > Administrative Templates > Google > Google Chrome > Password Manager
# Set "Enable saving passwords to the password manager" to Disabled