CVE-2026-4460: Google Chrome RCE Vulnerability

CVE-2026-4460 Overview

CVE-2026-4460 is a high-severity out-of-bounds read vulnerability in the Skia graphics library used by Google Chrome. The flaw exists in versions prior to 146.0.7680.153 and allows a remote attacker to perform an out-of-bounds memory read through a specially crafted HTML page. Successful exploitation could lead to information disclosure, potential code execution, or browser crashes.

Critical Impact

Remote attackers can exploit this vulnerability by luring victims to malicious web pages, potentially exposing sensitive memory contents or achieving arbitrary code execution in the context of the browser process.

Affected Products

• Google Chrome prior to version 146.0.7680.153
• Google Chrome on Microsoft Windows
• Google Chrome on Apple macOS
• Google Chrome on Linux

Discovery Timeline

• 2026-03-20 - CVE-2026-4460 published to NVD
• 2026-03-20 - Last updated in NVD database

Technical Details for CVE-2026-4460

Vulnerability Analysis

This vulnerability is classified as CWE-125 (Out-of-bounds Read), a memory corruption vulnerability that occurs when Skia, the 2D graphics library embedded in Chrome, reads data past the boundaries of an allocated buffer. The flaw can be triggered remotely via a maliciously crafted HTML page, requiring only user interaction (visiting a webpage) to exploit.

The attack vector is network-based with low complexity, meaning exploitation does not require special privileges beyond convincing a user to visit a malicious page. Successful exploitation could compromise the confidentiality, integrity, and availability of the affected system.

Root Cause

The root cause of CVE-2026-4460 lies in improper boundary checking within the Skia graphics rendering engine. When processing certain graphical elements from an HTML page, Skia fails to properly validate memory access boundaries, allowing an attacker to craft input that causes the library to read memory outside the intended buffer.

Attack Vector

The attack is delivered remotely over a network. An attacker creates a malicious HTML page containing specially crafted graphical content designed to trigger the out-of-bounds read condition in Skia. When a victim navigates to this page using a vulnerable version of Google Chrome, the browser processes the malicious content, triggering the vulnerability.

The exploitation scenario typically involves:

1. The attacker hosts a malicious webpage or injects malicious content into a compromised legitimate site
2. The victim visits the page using Google Chrome prior to version 146.0.7680.153
3. Chrome's Skia library processes the crafted graphical content
4. The out-of-bounds read occurs, potentially leaking sensitive memory contents or causing unexpected behavior

For detailed technical information, refer to the Chromium Issue Tracker #490254124.

Detection Methods for CVE-2026-4460

Indicators of Compromise

• Unexpected Chrome browser crashes or instability when rendering specific web pages
• Anomalous memory access patterns detected by endpoint security monitoring
• Chrome crash dumps indicating Skia library-related memory access violations
• Network traffic to known malicious domains hosting exploit pages

Detection Strategies

• Monitor browser crash reports for Skia-related out-of-bounds access errors
• Implement network-based intrusion detection rules for suspicious HTML content patterns
• Deploy endpoint detection capabilities to identify anomalous memory access behavior
• Use browser version scanning to identify unpatched Chrome installations across the environment

Monitoring Recommendations

• Enable Chrome's crash reporting and centralize logs for security analysis
• Monitor for unexpected browser process behavior using EDR solutions
• Track browser version compliance across all endpoints
• Implement web filtering to block access to known malicious domains

How to Mitigate CVE-2026-4460

Immediate Actions Required

• Update Google Chrome to version 146.0.7680.153 or later immediately
• Enable automatic browser updates across all managed endpoints
• Conduct an inventory scan to identify all Chrome installations requiring updates
• Consider temporarily restricting access to untrusted websites until patches are deployed

Patch Information

Google has released a security update addressing this vulnerability in Chrome version 146.0.7680.153. The patch is available for all supported platforms including Windows, macOS, and Linux.

For official patch details, see the Google Chrome Stable Update announcement.

Organizations should prioritize deploying this update through their standard browser update mechanisms or enterprise management tools.

Workarounds

• Restrict browsing to trusted websites only until the patch can be applied
• Consider using an alternative browser temporarily for untrusted content
• Implement network-level content filtering to block potentially malicious HTML content
• Enable Chrome's site isolation feature for additional process-level protection

# Verify Chrome version on Linux/macOS
google-chrome --version

# Force Chrome update check (Windows)
# Navigate to chrome://settings/help in the browser

# Enterprise deployment via Group Policy (Windows)
# Configure automatic updates through Chrome ADMX templates