Full Report
High-severity CSS flaw let malicious webpages run code inside the sandbox Google has quietly pushed out an emergency Chrome fix after attackers were caught exploiting the browser's first reported zero-day of 2026.…
Analysis Summary
# Vulnerability: Chrome CSS Use-After-Free Remote Code Execution
## CVE Details
- **CVE ID:** CVE-2026-2441
- **CVSS Score:** 8.8 (High)
- **CWE:** CWE-416 (Use-After-Free)
## Affected Systems
- **Products:** Google Chrome / Chromium-based browsers
- **Versions:** Versions prior to 145.0.7632.75 (Windows/Mac) and 144.0.7559.75 (Linux)
- **Configurations:** Standard browser installation; triggered via processing of malicious Cascading Style Sheets (CSS).
## Vulnerability Description
The flaw is a Use-After-Free (UAF) vulnerability residing in Chrome's CSS handling engine. This occurs when the browser continues to use a memory pointer after it has been cleared or deallocated. A remote attacker can trigger this flaw by enticing a user to visit a specially crafted HTML/CSS webpage. While the flaw allows for execution within the browser's sandbox, it provides a critical primitive for attackers to run arbitrary code on the victim's machine or potentially pair it with a sandbox escape.
## Exploitation
- **Status:** Exploited in the wild (Zero-day). No public PoC is currently available.
- **Complexity:** Medium (Requires bypass of modern browser mitigations, though the vector is automated).
- **Attack Vector:** Network (Remote)
## Impact
- **Confidentiality:** High (Potential for data theft and session hijacking).
- **Integrity:** High (Execution of arbitrary code within the browser context).
- **Availability:** High (Can lead to browser instability or persistent crashes).
## Remediation
### Patches
Google has released emergency updates. Users are urged to update to the following versions or higher:
- **Windows/Mac:** 145.0.7632.75
- **Linux:** 144.0.7559.75
### Workarounds
There are no official manual workarounds for this vulnerability. The primary mitigation is the immediate application of the security update. Users should restart their browsers to ensure the update is active.
## Detection
- **Indicators of Compromise:** Unusual browser crashes when visiting specific untrusted websites; unexpected outbound network traffic from the Chrome process.
- **Detection Methods:** Organizations can monitor for Chrome versions below the patched threshold using Enterprise Asset Management or Unified Endpoint Management (UEM) tools.
## References
- **Vendor Advisory:** hxxps[://]chromereleases[.]googleblog[.]com/2026/02/stable-channel-update-for-desktop_13[.]html
- **Security Report:** hxxps[://]www[.]theregister[.]com/2026/02/16/google_chrome_zero_day/