CVE-2026-2441

8.8 HIGH

📋 TL;DR

This is a use-after-free vulnerability in Chrome's CSS engine that allows remote attackers to execute arbitrary code within the browser's sandbox by tricking users into visiting a malicious webpage. All users running vulnerable versions of Google Chrome are affected, with the attacker gaining the ability to run code at the user's privilege level.

💻 Affected Systems

Products:
  • Google Chrome
  • Chromium-based browsers
Versions: All versions prior to 145.0.7632.75
Operating Systems: Windows, macOS, Linux, ChromeOS
Default Config Vulnerable: ⚠️ Yes
Notes: All standard Chrome installations are vulnerable. Extensions or security settings don't mitigate this vulnerability.

📦 What is this software?

Chrome by Google

Google Chrome is the world's most popular web browser, used by over 3 billion users globally across Windows, macOS, Linux, Android, and iOS platforms. As a Chromium-based browser developed by Google, Chrome dominates the browser market with approximately 65% market share, making it a critical compon...

Learn more about Chrome →

Chrome by Google

Google Chrome is the world's most popular web browser, used by over 3 billion users globally across Windows, macOS, Linux, Android, and iOS platforms. As a Chromium-based browser developed by Google, Chrome dominates the browser market with approximately 65% market share, making it a critical compon...

Learn more about Chrome →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full system compromise if combined with sandbox escape vulnerabilities, leading to malware installation, data theft, or ransomware deployment.

🟠

Likely Case

Arbitrary code execution within Chrome's sandbox, allowing session hijacking, credential theft, and browser-based attacks.

🟢

If Mitigated

Limited to sandboxed execution with reduced impact due to Chrome's security architecture.

🌐 Internet-Facing: HIGH - Attackers can exploit via malicious websites or ads without user interaction beyond visiting a page.
🏢 Internal Only: MEDIUM - Internal users could be targeted via phishing or compromised internal sites.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: MEDIUM

Exploitation requires crafting specific CSS that triggers the use-after-free condition. No authentication needed - just visiting a malicious page.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 145.0.7632.75 and later

Vendor Advisory: https://chromereleases.googleblog.com/2026/02/stable-channel-update-for-desktop_13.html

Restart Required: Yes

Instructions:

1. Open Chrome. 2. Click the three-dot menu → Help → About Google Chrome. 3. Chrome will automatically check for and install updates. 4. Click 'Relaunch' to restart Chrome with the patched version.

🔧 Temporary Workarounds

Disable JavaScript

all

Temporarily disable JavaScript to prevent exploitation, though this breaks most websites.

chrome://settings/content/javascript → Block

🧯 If You Can't Patch

  • Use alternative browsers until patching is possible
  • Implement network filtering to block suspicious websites and ads

🔍 How to Verify

Check if Vulnerable:

Check Chrome version in Settings → About Chrome. If version is below 145.0.7632.75, you are vulnerable.

Check Version:

On command line: google-chrome --version (Linux) or check via chrome://version

Verify Fix Applied:

Confirm Chrome version is 145.0.7632.75 or higher in About Chrome.

📡 Detection & Monitoring

Log Indicators:

  • Chrome crash reports with memory access violations
  • Unexpected Chrome process termination

Network Indicators:

  • Connections to suspicious domains serving HTML/CSS content
  • Unusual outbound traffic after visiting websites

SIEM Query:

source="chrome" AND (event_type="crash" OR memory_violation="access")

🔗 References

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