CVE-2025-10201
📋 TL;DR
This vulnerability allows attackers to bypass Chrome's site isolation security feature through a specially crafted HTML page. It affects Google Chrome on Android, Linux, and ChromeOS before version 140.0.7339.127, potentially enabling cross-origin data access.
💻 Affected Systems
- Google Chrome
- Chromium-based browsers
📦 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 →⚠️ Risk & Real-World Impact
Worst Case
Complete bypass of site isolation leading to cross-origin data theft, session hijacking, and credential theft from other websites.
Likely Case
Targeted attacks stealing sensitive data from other tabs or windows, potentially including authentication tokens and personal information.
If Mitigated
Limited impact if users only visit trusted sites, though still vulnerable to malicious ads or compromised legitimate sites.
🎯 Exploit Status
Requires user to visit a malicious HTML page. No public exploit code available at disclosure.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 140.0.7339.127 and later
Vendor Advisory: https://chromereleases.googleblog.com/2025/09/stable-channel-update-for-desktop_9.html
Restart Required: Yes
Instructions:
1. Open Chrome settings 2. Click 'About Chrome' 3. Allow update to complete 4. Restart browser when prompted
🔧 Temporary Workarounds
Disable JavaScript
allPrevents exploitation by disabling JavaScript execution
Use alternative browser
allTemporarily switch to unaffected browser until patched
🧯 If You Can't Patch
- Implement network filtering to block malicious sites
- Use browser extensions that prevent cross-origin requests
🔍 How to Verify
Check if Vulnerable:
Check Chrome version in settings > About Chrome. If version is below 140.0.7339.127, system is vulnerable.Check Version:
chrome://version/ or 'google-chrome --version' on LinuxVerify Fix Applied:
Confirm Chrome version is 140.0.7339.127 or higher after update.📡 Detection & Monitoring
Log Indicators:
- Unusual cross-origin requests in browser logs
- Multiple process crashes related to Mojo
Network Indicators:
- Requests to known malicious domains serving HTML pages
- Unusual iframe loading patterns
SIEM Query:
source="chrome" AND (event="process_crash" OR event="security_violation") AND process="renderer"