Google Releases Massive Chrome Security Update Fixing 353 Flaws, Including 6 Critical Vulnerabilities

What happened?

Google released Chrome 156 for Windows, macOS, and Linux on October 20, 2026, fixing 353 security flaws, including six critical bugs across graphics, accessibility, rendering, and communication features. Google says the release will reach users over the coming days and weeks. The patched versions are 156.0.8078.47 for Linux and 156.0.8078.47/.48 for Windows and Mac, according to the supplied release notice. Users should check their installed version and restart the browser after updating to ensure the fixes take effect.

Key details

• Google released Chrome 156 on October 20, 2026, fixing 353 security flaws across Windows, macOS, and Linux.
• Six critical vulnerabilities were patched, five involving memory corruption in Skia, Accessibility, CSS, Paint, and WebRTC.
• The sixth critical flaw is a use-after-free vulnerability in Accessibility, reported with AI assistance.
• High-severity issues were also fixed in SiteIsolation, FileSystem, ANGLE, V8, GPU, Network, and other components.

Summarised by SecOraLens from Cyber Security News. Always read the original source before acting. How SecOraLens verifies advisories.