Google Chrome Stable Channel Update Fixes 29 Vulnerabilities Including Critical WebML Heap Overflow
Google released Chrome 146 to the Stable channel for Windows, macOS, and Linux, addressing 29 security vulnerabilities in versions prior to 146.0.7680.71/72 (Windows/macOS) and 146.0.7680.71 (Linux). The most severe issue highlighted is CVE-2026-3913, a critical heap buffer overflow in WebML that could enable remote code execution when a user visits a maliciously crafted webpage; additional high-severity fixes include multiple memory-safety bugs such as use-after-free and out-of-bounds read conditions across browser components.
The Canadian Centre for Cyber Security issued advisory AV26-220 urging organizations to review Google’s guidance and apply the Chrome updates as they become available. A separate Canadian advisory, AV26-206, covers Microsoft Edge Stable updates for versions prior to 145.0.3800.97; while also Chromium-based, it is a distinct vendor release and should be tracked separately from the Chrome 146 patch cycle.

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How this story unfolded
2 events from the most recent confirmed update back to the earliest known activity.
Google publishes follow-up Chrome advisory for newer stable versions
On March 12, 2026, Google published another Chrome stable channel security advisory covering versions prior to 146.0.7680.75/76 on Windows and Mac and prior to 146.0.7680.75 on Linux. Google said exploits for CVE-2026-3909 and CVE-2026-3910 exist in the wild, indicating active exploitation.
Google issues Chrome 146 stable update fixing 29 vulnerabilities
On March 10, 2026, Google released Chrome 146 to the stable channel for Windows, macOS, and Linux, addressing 29 security vulnerabilities in versions prior to 146.0.7680.71/72 on Windows and Mac and prior to 146.0.7680.71 on Linux. The fixes included critical CVE-2026-3913, a heap buffer overflow in WebML that could enable remote code execution via a malicious web page.
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Google Chrome security advisory (AV26-235) - Canadian Centre for Cyber Security
cyber.gc.ca
Open sourceChrome Security Update - Patch for 29 Vulnerabilities that Allows Remote Code Execution
cybersecuritynews.com
Open sourceGoogle Chrome security advisory (AV26-220) - Canadian Centre for Cyber Security
cyber.gc.ca
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