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Chrome 148 Critical CVE Security Update: Patch Guide

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Browser security update graphic for Chrome 148 critical CVE patch guidance on Windows Mac Linux Android and iOS

Browser security update graphic for Chrome 148 critical CVE patch guidance on Windows Mac Linux Android and iOS

Impact statement: Google Chrome 148.0.7778.167/168 for desktop includes a large May 2026 security update with 79 security fixes, including multiple Critical CVEs such as CVE-2026-8509 through CVE-2026-8522. Several of the fixed bugs are memory-safety issues in browser components that process web pages, media, downloads, payments, files, and device features. For real users, that means a malicious or compromised site could potentially put a workstation at risk before the browser is updated and relaunched.

If your machines handle hosting support, customer files, WordPress admin logins, cPanel or WHM access, billing portals, SSH keys, password managers, or RMM tools, do not treat browser updates as optional. Chrome is one of the most exposed applications on Windows, macOS, Linux, ChromeOS, Android, and iOS systems because it is constantly parsing untrusted internet content.

Who should update?

Fixed desktop versions

Google’s Stable Channel update says desktop Chrome was updated to:

Because Google rolls browser updates over days or weeks, some systems may not receive the update instantly unless you force an update check, use enterprise policy, or deploy through an RMM, MDM, package manager, or software-management platform.

Critical CVEs called out by Google

Google highlighted a long list of fixes. The critical entries in this desktop update include:

Google did not state in this release post that these specific CVEs are known to be exploited in the wild. That does not make them low priority. Browser criticals can move from patch notes to real-world abuse quickly, and Google intentionally keeps many technical details restricted until most users have updated.

How users can update Chrome safely

  1. Open Chrome.
  2. Go to Menu > Help > About Google Chrome.
  3. Let Chrome check for updates.
  4. Install the update when offered.
  5. Relaunch Chrome.
  6. Go back to About Google Chrome and confirm the version is at or above the fixed version for your operating system.

Chrome must be relaunched before the patched browser process is actually in use. Leaving the browser open for days after an update downloads is a common reason machines stay exposed.

Windows admin checklist

Useful Windows checks:

winget upgrade --id Google.Chrome
winget list --id Google.Chrome

For enterprise fleets, prefer your managed deployment and reporting tool over hand-running commands on every workstation.

macOS admin checklist

Local version check:

/Applications/Google Chrome.app/Contents/MacOS/Google Chrome --version

Linux admin checklist

Debian and Ubuntu style systems:

sudo apt update
sudo apt install --only-upgrade google-chrome-stable
google-chrome --version

RHEL, Fedora, AlmaLinux, Rocky Linux, and similar systems:

sudo dnf update google-chrome-stable
google-chrome --version

Android, iPhone, and iPad guidance

What hosting companies and MSPs should do

This is not just a home-user browser issue. A compromised browser on a support workstation can become a path into hosting panels, customer WordPress sites, DNS records, registrar accounts, payment systems, and remote support tools. For hosting companies and MSPs:

Virtual patching and CDN note

A CDN or WAF cannot patch a browser on a user’s machine. The practical edge-side defense is to reduce risky traffic exposure, block known malicious infrastructure where identified, and protect web admin portals with MFA, device checks, VPN, or access challenges. The permanent fix is still to update Chrome and other Chromium-based browsers.

Sources

Fix I.T. Phill note: This article is protect-only. It does not include reproduction details, attack strings, or test cases. Update, relaunch, verify, and tighten access to admin portals.

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